Heathkit 1976 Catalog

Page 2

1W Heathkit electronic digital Super-Clock

An electronic digital floor clock with full 31/4 high numerals
in a modern, functional etagere cabinet

$13995

OMtItnallcdirnmlng
drcultadiuuctoroon
"glitter-charming
Induces-Itch!

Ollourlndnrinuumd-
outcanhouinlmn
anywnmlntneroun

0 Electronic WWI:-
stor Chimes build In
easily tor an M,

"on "Dip Ion" sound

Add elegance with a "spaceagw touch anywhere in your home! The
(30-1195 super-clock is housed in a stylish cabinet with tour
smoked glass shelves tor plants, books or knick-knacks-and the
cabinet is tinlshed in handsome simulated walnut-veneer laminate
with anodized aluminum corner pieces.

The 31/4 high clock digits glow brightly enough to be read even in
daylight, and an automatic dimming ieature adjusts them to dimin-
ishing room light tor a charming, subtle display in dim or darkened
rooms.

The clock displays hours and minutes. with the center colon pulsing
each second. A special power lailure indicator circuit pulses the dis-
play brightness to show that power has been interrupted and clock
must be reset. Easy time setting is accomplished by readily accessi-
ble, easy-to-use test and slow time advance switches located on the
bottom of the clock chassis.

The GC-1195 is a handsome addition to most any decor, and a great
conversation piece. For even more charm and "Old World" distinc-
tion, add our electronic clock chimes accessory (described below).

Kit GIG-1195, Shpg. wt. 65 lbs. ........................... 139.95

(ac-1195 SPECIFICATIONS
Dlsplay: 3V. amused Incandescent readout. Format: SW-dloll (12-hour) time
readout. Power requirement: 108432 VAC. 50/60 Hz, 30 watts. 216-264 VAC. 50/
60 Hz, 30 watts Dimensions: 14 W X 9V2 D x GOV/2 H. Net Weight: 48% lbs.

Westminster Chimes Accessory

$6995 Authentic "Big Ben"
chimes sound

Builds into the 60-1195 or (50-1197 to provide rich.
electronically synthesized "Big Ben" chimes: 4 notes
on the 1/4 -hour, 8 notes on the Vrhour; 12 notes on the
"/4 hour and the lull 16-note passage and hour annun-
ctation on the hour. And you can even turn on a reas-
suring electronic tick-lock". Has volume and pitch
adjustment, sound-decay control, "tick-took volume
control, built-in speaker.

Kit GOA-11954, Shpg. wt. 3 lbs. ........ . . . . . .6935

Digital Electronic Shelf Super Clock"

$8995 Has the same great features as our Digital Floor

Clock In a handsome Shell Clock Case

Uses the same electronics and display as the GIG-1195 iloor clock.
but is housed in a good-looking walnut-veneer cabinet suitable for
shelf, table or desk-top use. Adds a touch oi timely elegance to your
home or oflice. Accepts optional GOA-1 195-1 electronic chimes. Spe-
cifications same as 60-1195 above, except dimensions are 61/2 H x
12Vz"W x 61/4 D.

Kit etc-1197, Shpg. wt. 15 lbs. ........................ ... .3195
Charge-A-Kit - no money down on any kit - see page 54 lor details.

Page 13

W Our sensational low-priced TV Game!

Heathkit GD-1380 Sportscreenm

Four-in-one Electronic TV Game
$4995 Turn your solid-state Heathkit TV into a iamiiy
game center with ping-pong, hockey, squash
and practice games
it you own a Heathkit solid-state TV. or it youre planning to buy one
now. your decision just became even smarter! Because now you can
add our sensational new electronic TV game for about HALF the cost
of other models.
The GD-taBO hooks up to your set easily. with five clip-on connec-
tions to your set's chassis. It lets you play ping-pong. hockey, squash.
and an individual practice game that helps hand-eye coordination.
It has automatic on-screen scoring; speed, paddle-size and angle
adjustments, and a realistic ball sound that comes right through your
sets speaker. The two remote player-controls come with 10-it. of
cable, so you can play all games right from your easy chair.
Order the GD-1 380 today for years oi iamily tun, challenge and excite-
ment. it's the easy, low-cost way to get even more family entertain-
ment and enjoyment from your Heathkit TV. For complete details.
see page 3 of this catalog.

Kit GD-taao, Shpg. wt. 4 lbs. For models below only. . ..... 49.95

GD»1350 SPECIFICATIONS
Control Unit Dimensions: 11%" W x 6%" D x 23/. H. Power Input: Draws power
irom Heath TV set. Maximum Power Dissipation: For any Heath solid-store TV.
(IV: watts. For use with Healhkit Solid-State Color and B/W TV's only: Model
Nos. Git-104. (SR-104A, a. c; Git-169: amass; Git-270; GR-271; (SR-300; GR~370:

GR-371: (SH-400; GR-SOO; (ER-900: GH-IQOD: 8154000; (ER-2001: (SH-2050.

As low as

$5795

III Coaxial distributor ior 4-room TVI FM net-
work-Takes single coax input from all-
channel antenna, amplifies it to feed 4 wall
outlets. includes 20W coax cable, connec-
tors, crimping tool, 4 matching transiormers/

" t
' :Most mount
1' rotor

$5495

splitters.
CID-248, Shpg. wt. 14 lbs. . . . . . £9.95

(ED-328,100 coax, w/ connectors and antenna
boot installed. Shpg. wt. 4 lbs. . ..13.95

IZI 75/300 Ohm Transiormer-Spliiter matches
one 75 ohm coax to separate VHF, UHF 300
ohm leads.

(ED-298. Shpg. wt. 1 lb. .............. 4.95

E] Ail-channel Matching Translormer con-
verts 300 ohms to 75 ohms for coax.

GD-1054, Shpg. wt. 1 lb. ............. 3.95

Eul- Guide to Color TV -- buying a

set. Installing the antenna, adjust-
: ments. EDP-12B .............. 3.50
I Questions and Answer: About
TV - covers operation.
servicing. EDP-125
99 Ways to Improve Your TV Recap-
lion. Emphasis on antenna a lead- in
problems EDP-150 ............ 3. 50
Home TV- FM Antennas - design. in-
stallation. EDP-lea .5.95
See page 52 ior book ordering inio.

"i
Installation.
5. 95

Charge-A-Kit - no money down on any kit - see page 54 for details.

E] "Super Antenna". 71 elements.F/B signal re-
jection: VHF. 23 dB. UHF. 24 dB. 196 boom.
116" turning radius: 156" width. All aluminum
with gold color, weather- -protected iinish.

(ED-1460, aoq ohms. less mast and cable

Shpg. wt. 24 lbs. Motor Freight. ..89.95
15-ahlrl ..94.55

IE Deep Fringe" Antenna. Similar to above. 52
elements. 149 boom, 82 turning radius. 102" W.
FIB signal rejection: 20 dB VHF. 22 dB UHF.

60-1450, 300 ohms, less mast and cable.

Shpg. wt. 19le. Motor Freight. . 5195
75 ohm .62 95
'Order GD- 298 and CID-1054 to convert to 75 ohms.
Hes. $8 90 - ONLV $5 with antenna. Antennas In-
clude removable FM blocking elements.

Deluxe Cornell-Dubilier
Antenna-Rotor System

Deluxe antenna rotor system consists oi control
box and rugged outdoor rotor. Pin-points your
outdoor antenna to the exact direction ol the
broadcast station ior dramatically improved TV
and FM reception. Heavy-duty 1 rpm rotor has
positive automatic stop, instant reverse. V2" dis.
ball thrust bearing supports antennas to 150 lbs.
Lower mast clamp accepts 7/0" to 2" dia. masts
and is removable ior direct mounting on rotor
plate at tower. Liietime lubricated bearings. Solid-
state control box has 360° rotor control. plugs
into AC outlet. Requires 5-wire cable (not sup-
plied).

GDP-1176, Shpg. wt. 14 lbs. ............. 54.55

These low-cost mailable TV antennas really help

radius.

. 60-1431, 300 ohm, less mast and
cable. Shpg. wt. 25 lbs. .
l 75 ohm ...............

Fringe" Antenna. Shown at ieit. 22-
element antenna provides VHF re-
ception up to 75 miles and UHF up

to 45 miles. 119 boom. 68 turning

. . .5435

Deluxe Fringe" Antenna. Not shown.
Has 28 elements. pulls in signals
even in problem reception areas.
Provides VHF reception up to 100
miles, UHF up to 60 miles. 131
boom, 80 turning radius.

(ED-1441, 300 ohm. less mast and
cable. Shpg. wt. 25 lbs ...... 39.95
75 ohm . . .

. .2935

b.

Page 17

Make your travel safer and more convenient

Cab-to-Camper Intercom
0 Provides reliable
$2995 communication between
0 Easy assembly and
installation
Master selects "Standby", Monitor" or
has "Radio" position to bring music into
camper from cab radio. Requires 12-volt, 250
mA power source.
Shpg. wt. 5 lbs. .................... 29.95
GDA-1so-1, Accessory Plug. For quick dis-
connect when camper and cab are separated.

cab and camper
"Talk modes. Remote can initiate calls and
Kit GD-160, Master. Remote and Cable,
Shpg. wt. 1 lb ....................... 4.50

Windshield Wiper Delay

Eliminates constant wiper arm movement
when an occasional sweep is sufficient. Lets
you vary the time between sweeps.

Kit CH-1068, Shpg. wt. 2 lbs. ........ 15.95

CH-1068 SPECIFICATIONS-Delay Interval: 5 to 30 sec-
onds minimum. Sweeps interval: .5 to 10 seconds mini-
mum. Input voltage: 13.8 volts DC, 120%. Positive or
negative ground. Wiper System Compatibility: (Electric
Only) cM: All single and two speed systems. Ford: Most
small and intermediate models. Not compatible with lull
SilB models or '72-76 Tonno, or Montego. '74-'76 Cougar
Chrysler: Single and two speed systems on small and
Intermediate models which do not use a motor reversing
parking system. Ask dealer about your car's system.
AMC: Single and two speed systems. Other models:
Electric wipers which do not use a motor reversing park-
ing system. NOTE: Heath does not supply automotive
wiring diagrams lot this unit.

0 Hear real Ill-ll sound
In your car

0 Mutiny eliminates
bemoan-station noise

$6995

This FM Stereo Tuner puts REAL hi-ti Performanée in your car!

Enjoy stereo FM as you drive, with excellent
fidelity. The Heathkit CR-1DOOA FM Stereo
Tuner features a new Phase Locked Loop
demodulator to bring you greater stability
and separation, better noise rejection. and
easier kitbuilding. And it offers the kind of
specs youd expect from a home system-
Iess than 1% THD; frequency response i1
dB, 30 to 15,000 Hz; 3 [AV sensitivity; 60 dB
selectivity; 40 dB nominal separation. Other
features are: muting circuit to eliminate noise
between stations; AFC; Tuning,Volume,Tone
8t Balance controls; on-ott switch; stereo
indicator light. Requires power amp. (right)
for operation. '

Kit CR-lflooA, Shpg. wt. 7 lbs. ....... 69.95

Kit ORA-10004, Power amp., fits back of
tuner, tor 12V battery. Shpg. wt. 3 lbs. 29.95

IIICRA-1000-2, 41/2. 4-ohm door

ti speakers (including grilles, adapter
plates for most speaker size openings and
24 speaker lead).

Shpg. wt. 8 lbs ................ (pair) 14.95

III CRA-1000-5, 6x9"4-ohm rear deck mount
hi-ti speakers (including grilles and 24
speaker lead).

Shpg. wt. 7 lbs ................ (pair) 21.95

Heathkit Mobile Security System - Keeps your car sale!

Protects your entire car - engine,

trunk and passenger compartment!

Heres effective auto protection at an attordable price!
Ideal for cars with GB or amateur radio rigs, tape play-
ers, etc. Under-dash alarm set switch allows 5-15 second
adiustable delay so you can enter or leave your car with-
out sounding the alarm. II the passenger compartment is
tampered with, the entry delay is defeated and further
attempts to enter car will trigger the alarm instantly. An
optional horn relay adapts the GD-1157 to cars whose
horns do not use a relay or use a plug-in relay. Optional
siren accessory provides attention-getting "yelp" sound
instead 01 sounding the car horn. With all switches and
hardware. Alarm unit, 2% H x 4% W x 5 D. For 12
VDC negative ground only.

@ Kit err-1157, Shpg. wt. 3 lbs. ................ 24.95
@ Kit GDA-1157-1, Optional Siren Accessory. 2 lbs. 19.95

Kit GDA-1151-2, Optional Horn Relay (not shown).
Shpg. wt. 1 lb. ............................... 2.95

Order early tor best selection! Phone (616) 902-3411 day or night.

17

Page 22

Super-Low Prices on Heath-Recommended w

G)

INTERNATIONAL

1 ers Suggested
Retail PriceI

H aih
$12955 ,s, $9995 messages $15995 gem $11995
Midland 23-channel mobile rig , Rm" Pm . . me .
Model 13-8628. Compact CB has right~in-sight" top panel Midland 23'Channel mOb'le With delta flung

with lighted channel indicator, illuminated 3/ RF meter and Model 13-857. For the cost-conscious CB'er who wants outstanding
Transmit light. Synthesizer circuit for instant operation on operating convenience. Precise synthesized crystal system covers
all 23 channels- all crystals included. Dual conversion all 23 channels. Delta fine tuning adjusts :1 kHz to pull in "olt~cen-
superhet receiver has tuned RF tor selectivity of 8 kHz at ter signals. Tuned RF stage; AGC; switchable ANL: iull»range vari-
-6 dB. Automatic noise limiter, variable squelch, PA/CB able squelch. Built-in 3 speaker. external speaker provision. Lighted
switch, 3 speaker, external speaker switch. PTT mike, S/HF meter. 4-walt output with high level modulation for peak talk
cord. Size: 2% H x 5%" W x 9 D. For 12 VDC positive or power." 12-volt DC positive or negative ground. Size: 2% H x 6%
negative ground. W x 77/9 D. includes PTT mike with coil cord, mounting bracket.

Gwp-ztso, Shpg. wt. 5 lbs. Assembled ........... 99.95 GWP-2191, Shpg. wt. 6 lbs. Assembled ................... 119.95

DLAND

<

Mtr's Suggested $14495 Heath $9995 M';:t:iigl?gi'?£Ed $11995 1:35;: $13995

Retail Price Price
_ _ Royce mobile CB Radio with Gyro-Lock

ROYCE mOb'le 23-channel Transcewer Model 655. Features Gyro-Lock (Phase Lock Loop) circuitry for 23-
Model 650. Dependable communications at a modest price. channel transmit/receive on Floyce's famous wireless" chassis. Has
Wireless modular design with synthesized 23-channel cir- a big illuminated S/RF meter, continuous line tuning control, push-
cuitry - all crystals are included. Dual conversion receiver button automatic noise limiter. pushbutton PA/CB switch, pushbutton
has tuned RF stage, |C audio stage rated 6 watts RMS. 3 RF gain control. AMC for maximum talk power. LED transmit light.
ceramic filters, amplified AGO, fully variable squelch. Full-size plug-in microphone. Modular-design chassis for reliability,
Lighted 1 S/RF meter, external speaker jack, 3 speaker, with jacks tor external/PA speaker. Uses metal-case RF output trans-
custom plug-in mike. Powered by 12 VDC, positive or neg- istor- more rugged than plastchz VDC positive or negative ground
alive ground. Vinyl-clad metal cabinet. operation; power cord included.

GWP-2180, Shpg. wt. 7 lbs. Assembled .......... 99.95 GWP-2181, Shpg. wt. 8 lbs. Assembled ................... 139.95

SAVE on m Tennu CHE-10 Retractable Mobile Antenna.

Retracts out ol sight when not in use for theit

Antennas l0°! protection. Adjustable swn. With 13' coax.
RG-SS/U. all hardware.

GDP-110, Shpg. wt. 3 lbs, ............. 59.95

Q Avs M476 Quick-Grip" Mobile Antenna.
Trunk lid mount (no holes to drill). 46 high.
Weatherprooi loading coil; 17' coax. Shpg. wt.
3 lbs.

GDP-2121 ............ was $26.55 Now 19.95
E} A-S till-117 Super Magnum" Base Antenna.

lz wave endJsd: gives 3.75 dB gain. improves
S/N 6 dB! Static~reduction ball. Shpg. wt. 9 lbs.

IZIEIE

ltlaonmsow

G P 1 w m N 2m Low-priced Johnson mobile

D '2 2° """""" ass 5 ow ' Messenger 123A. Proven 100% solid-state chassis with
BMW "3 ("0 0'95 '0 d'i)- Wil" 10' selectivity mechanical litter and acoustically isolated
°°3x'sp9-w"3'b5' speaker. Lighted RF output/S meter. 23 channels with
mounts in 9s hole. Loading coil. 46 h; 17' bracket. Order antenna at left.

ma"- ewe-100, Shpg. wt. 6 lbs. Assembled ........... 129.95

[Ii
Mirs Suggested Heath 12995
Retail Price $15995 Price $
E '5 "3'1 "F'ippe'" M°b"° A"'°- speech compression, built-in automatic noise limiter, high-
GDP-2122 ............ Was $22.95 Now 15.95 maximum legal Bowen Just 2V2" H x 6% w x 9%., D; op_
E A-s ill-125 Roottap Mobile Antenna. Snap ' erates on 12 VDC negative ground. With crystals, mike,
GDP-2123, Shpg. wt. 3 lbs. ............ 17.95 GWP-100-1, AC supply. Shpg. w 4 lbs ----------- 37-50

22 See page 92 for informatlve 68 books

Page 25

HEATHKIT

was?)

Convenient and versatile AMIFM Digital Electronic Alarm Clock-Radio

95 o "Camap" with the 1-minute snooze button
$ 29 I stay on time", even it Ac power tails
thanks to the built-in tail sale" circuit

Here's everything you need in a quality clock-radio - 24 hour setn
lorget alarm, tine sound and style that tits anywhere -- kitchen. bed-
room, den. oft-c Se 'ng the pace for convenience in the (ER-1075
is the all-electronic tal clock. it reads out the time in conventional
12-hour format with bright orange 7-segment Beckman digits. Dis-
plays AM or PM, too. A lighted decimal pulsates to In Icate seconds
and also shows that the alarm is properly set. Readout teatures auto-
matic brightness control. The 24-hour alarm cycle otters convenience
you just wont find on conventional alarm clocks. Go to bed at 9 PM
and set the alarm tor 10 AM without being awakened in an hour. The
alarm can be set to wake you with a gentle pulsating, electronic
beep" (which can be changed in volume by the radio volume con-

trol)...or by the soil music trom the FM or AM radio station of your
choice. The 7-minute snooze cycle leature is repeatable for up to an
hour. Two 9-volt batteries (not supplied) take over during power inter-
mptions and keep the clock counting, without the display -whan
power is restored the clock is "on time" and the alarm will go 0" at
the set time. On the front panel are finger-Hip switches tor on/ott;
AM/FM selection: radio or electronic alarm .ake-up alarm set;
Snoorze cycl plus volume and AMI FM tum _ controls. Black
plastic cabinet with brushed aluminum trim s , p, and simulated
walnut-grain vinyl end panels.

Kit (ER-1015, Shpg. M. 10 lbs. . ..... 1835

(EH-1075 SPECIFICATIONS: FM Sensitivity: 5 [N @ 30 d3 uulelmg. AM Sensitivity:
300 1le @ 2|}, d9. qu-etmq, Speaker 3' l 2' ma! Power muim-nll 120/240
VAC.5DI6G ' H Ianimatt acK7 D' enm-AV'HxI'Pb'W B'h'D

Page 61

these quality Generators from Heath

General Purpose RF Generator provides accur-
ate srgnals tor convenient radio and TV servrce
The Heathkit 16-102 is an accurate, stable source at modulated or
unmodulated RF signals for use in AM, FM. TV. LW and SW broad-
cast bands. It covers 100 kHz to 100 MHz in 6 bands (100-200 MHz
on harmonics) with 2% tuning accuracy. Has a large. easy-to~read
calibrated dial. line and coarse attenuation controls, external modU-
lation input. Internal signal modulation is 400 Hz and a 400 Hz audio
output is provided tor audio tests. 120/240 VAC, 60/50 Hz. 9V2 H x
6% W x 5 D.

Kit 3-102, Shpg. wt. 6 lbs. . . . . ........................... 49.95

Heathkit Stereo FM Generator

Provides audio or composite stereo signal for multiplex adapter ad-
iustments . . . an RF carrier modulated by these signals for tuner G. re-
ceiver adiustments...phase test lunction tor subcarrier transformer
adjustment...a variable level crystal-controlled 19 kHz pilot signal
tor checking receiver lock-in ranges. . . plus built-in sweep and
marker signals lor RF & IF alignment. With test leads.

Kit lG-37, Shpg. wt. 12 lbs. .............................. 99.95

K5457 SPECIFICATIONS

RF signal lreguency: 100 MHz adjustable by approx. :2 MHz. Pilot modulating
trequency: 19 kHz :2 Hz. FM modulation: Lell channel (stereo). right channel
(stereo). Phase Test (lelt plus right channel in phase). Monophonic FM. Devia-
tion: Miustable to 75 kHz. Sweep rate: (used tor RF and IF alignment) 60 Hz.
Sweep wid : (used tor RF and IF alignment). Adjustable to 750 kHz. RF attenu-
ator range: 60 dB in 20 dB steps. Crystal-controlled markers: 10.7. 90.95. 96.30.
96.30. 101.85 a 107 MHz. Composite signal output: Lett channel (stereo): Right
channel (stereo). Phase test (ielt plus right channels in phase). Audio output:
400. 1000 B- 5000 H1: 10 kHz (22 H1): 38 kHz & SCA (55 01 67 kHz). Distortion:
(A! 400, 1000 Gt 5000 H1)I Less than 5%. Power requirement: 120/240 VAC.
50/60 HZ. 35 W. Dimensions: 5'lz" H X 13V? W x 5" D.

Sine-square wave Audio Generator with
frequency range to 100 kHz

0 Sine wave output available from 1 Hz to 100 kit:
with low distortion

0 5 Hz to 100 kHz square wave output with last risetirne
ideal Ior audio response testing

0 Outputs available simultaneously or independently

A highly versatile. low cost addition to any bench. ThellG-18 is ideal
for gain and frequency response measurements in audio amplifiers,
as a signal source tor harmonic distortion measurements or as an
external modulator for RF signal generators.

Sine wave signals are available lrom 1 Hz to 100 kHz with distortion
less than 0.1% lrom 10 Hz to 20 kHz. Eight switch-selected output
ranges from 0.003 to 10 V are provided when operating into a high
impedance (10 k ohm min.) external load. Six ranges from 0.003 to
1 V are available when operating into the internal 600 ohm load or
external load. A meter monitors the sine wave output. and is con-
veniently calibrated in both volts and dB. Square wave output is avail-
able lrom 5 Hz to 100 kHz with peak-to-peak output levels of 0.1 and
10 V into a load 012000 ohms or greater. Risetime is 50 nanoseconds.
making the IG-18 ideal for checking audio amplilier response or use
as a trigger for digital circuitry testing.

Frequency is quickly and accurately selected using tront panel
switches tor 0-100, 0-10. and x1. 10. 100 and 1000 multipliers. A sep-
arate vernier control is provided tor the 0-1 range.

Other teatures include output available simultaneously or independ-
ently at 5-way banana iacks...switchable internal or external load
.. .dual primary transformer tor 120 or 240 VAC operation . . .built-in
carrying handles for easy portability. Easy kit assembly. or you can
order the unit lactory tested and calibrated.

Kit IG-18, Shpg. wt. 11 lbs. .............................. 84.95
Assembled SG-IBA, wired version of the [6-18 in black 8t
white styling. Shpg. wt. 10 lbs. .......................... 130.00

IG-15 SPECIFICATIONS

SINE WAVE OUTPUT: Output vollaga: 8 ranges, 0.003 to 10 v rms (lullvscale)
with 10 k ohm or higher external load. 6 ranges. 0.008 to I V (lull scale) with
600 ohm internal or external load. dB ranges: -62 dB to +22 dB. -12 dB to
+2 dB on meter and -50 to +20 dB on amplitude switch in 10 dB steps. +2
dB max. into 600 ohm load. (0 03:1 mW in 500 ohm): Output variation: +1
dB 10 Hz to 100 Hz. Output indications: Two voltage and one 05 scale on meter.
Output impedance: 10 V range: 0-1000 ohm; 3 V range: 800-1000 ohm: 1 V
range and lower; 600 ohm. Meter accuracy: 210% pl lull scale with proper load
termination. SQUARE WAVE OUTPUT: Output Vollage (puma-peak): 0.1; 1.
10 V into 2000 ohm load or higher. Output impedance: 0.1 V and 1 V ranges: 52
ohm: 10 range: up to 220 ohm. Power requirement: 105-125 or 210-250 VAC.
60/50 Hz. 6 watts.

Charge-Adm - no money down on any lrit - see page 54 for details. 61

Page 63

Our lowest-priced frequency counter-value PLUS!

Power/time Bose
Switch Turns the IM-
4100 on, selects be-
tween kHz and MHZ
for frequency meas-
urements, and se-
lects second or milli-
second time bases
for period measure-
ments.

Overrange lndicalor
Indicates when the
number to be dis-
played Is larger than
the display can han»
die.

Three Operating
Modes Modes lor ire-
quency measurement
to 30 MHZ. period
measurements to 99.-
999 seconds, or total-
lle for events count-
Ing to 99,999 are

easily switch-se-
lected.

Input Attenuator
Three-posilion switch
provides +1, +10 or
+100 attenuation DI
the Input signal.

Gale Lamp Flashes
on when the display
Is updated. Also
functions as a logic
probe for trouble-
shooting during cell-
bralion or servicing.

Reset Switch Push-
button switch resets
the display to zero In
any mode oi opera-
lion.

MODE

PER FREQ TOL

TI BASE

Arm
mar/glut

lNPUT ATTEN
I 10 00

Iloou Il-uoo

Our most versatile counter - frequency to 30 MHz, period to 99.999 seconds, events to 99,999

Gives you the performance you NEED
$12995 for precision measurements - outstanding
Kit resolution and sensitivity!
The Heathkit lM-4100 is an almost unbelievable counter value. Its a
full five-digit frequency counter. It will also function in period mode
or totalize mode. It provides built-in input attenuation and 12-volt
operation all in one compact package. The latest digital design and
a stable 10 MHz crystal oscillator assure outstanding accuracy and
precision on all measurements. Its excellent resolution makes it ideal
for a variety of signal alignment applications.

As a frequency counter, the IM-4100 is guaranteed to 30 MHz with
1 Hz resolution. Sensitivity is a low 15 mV from 50 Hz to 30 MHz,
50 mV below 50 Hz.

In the period mode, it measures intervals up to 99.999 seconds. Us-
ing the millisecond time base, it resolves to 1 "sec! This mode can
be used for low frequency measurements with high accuracy. Just
position the TIME BASE switch to his and the MODE switch to PER.
Then solve the equation I=1/period, using the displayed value.

The totalize mode will add up (totalize) event pulses up to a count of
99,999. Pushing the RESET button starts the count at zero. An inhibit
signal can be applied through a rear panel terminal to stop the total-
ize mode at any time, without loss of the displayed count.

The front panel attenuator switch allows the amplitude of input sig-
nals to be divided by 1, 10 or 100. The pushbulton RESET switch
quickly resets the display to zero in any mode. Front panel display
includes overrange indicator and a gate lamp.

A rear panel switch easily selects internal or external time base. The

Charge-A-Kit - no money down on any kit - see page 54 for details. 63

rear panel connector can be used as an input for the external time
base signal, or as an output to check the internal 10 MHz time base
or provide a convenient frequency standard of 1 MHz for bench use.
Switch selected 120 or 240 VAC, or operation from any 12-volt DC
source is possible with the IM-4100 - no 'extra accessories are
needed. Power is applied through a rear panel connector (mating
connector supplied),

The IM-4100 is an easy kit to build. with an open chassis layout, cir-
cuit board construction and wiring harness to simplify assembly. Or
you can order it factory assembled and tested. Add the lM-4100 to
your service bench today - dollar for dollar, its one of the best coun-
ter values youll ever see!

Kit IM-4100, Shpg. wt. 7 lbs. . . . ....129.95
Factory assembled and tested version of above.
SM-Muo, Shpg. wt. 7 lbs ............. . .1so.oo

IM>4100 SPECIFICATIONS

FUNCTIONS - Frequency: 5 Hz to 30 MHz. Period: 1 usec resolution to 99.999
sec. Totalize: t-99,999 events. INPUT - Frequency Range: 5 Hz to 30 MHz mini-
mum. Sensitivity: 15 mV ms (50 mV. 5 Hz to 50 Hz). Period Pulse Width: 25 nsec
minimum. Low Frequency Signal Risetime: 1 msec lcr signals less than 10 Hz.
Input Impedance: 1 megohm shunted by less than 35 pF. Protection: 240 volts
rms at 60 Hz. Attenuator 1. X10. XIUO fixed compensation. TIME EASE - Fre-
quency: 10 MHI. Setabili : :1 ppm. Temperature stability: 1'10 ppm. maximum
0" (D 40° C ambient. OSCILLATOR CONNECTION - External Input Frequency:
DC It) 20 MHZ. External lnput Sensitivity: TTL or 2.5 V rms Ilom 50-ohm source.
Internal Output: TTL signal at 1 MHZ. GENERAL-Gate Interval: kHzV1 sec.
MHz-I msec. Manual Gate: DC control in events mode using external OSC input
connector. Display Time: 200 msec plus gate interval. Power Requirement: 105-
130 or 2107260 VAC (switch-selected). 60/50 HZ. (at 25 walls): or 9- VDC at
1.25 ampeies. Dimensions: 2% H x 7% W X 10V? D (less handle),

Page 65

Pick the power you NEED for your bench!

Tri-Output Experimenters Power Supply

Three floating outputs can be

connected in any combination for a

$7995 wide variety of output voltage
Kit and current capability

Combines 5 VDC tixed output with two 0-20 VDC variable outputs in
a single. compact supply ideal tor experimenters. The 0-20 variable
outputs can be tracked - one will follow" the other at any specified
voltage ditlerence- ideal for analog circuits requiring a + and -
voltage. The 5-volt output is useful for digital circuits. All outputs are
short-circuit proof, with current limiting. They can be operated inde-
pendently. in series, or in parallel. Switchable front panel meter mon-
itors all outputs.
Kit IP-2718, Shpg. wt. 12 lbs. ............................. 19.95
Assembled SP-211B, Shpg. wt. 12 lbs. 140.00

lP-27TBSPECIFICATIONS .
Outputs: 5 volts DC 15% at 1.5 A. Two 0-20 VDC at 0.5A, continuously adjust-
able. Hegulatlon: Load: less than 0.1% variation trom no load to lull load on
20~volt supplies; less than 2% variation lrom no load to lull load on S-volt
supply. Line: less than 0.2% variation ior llne voltage change ol to volts on
20 volt supplies less than 0.15% variation tor line voltage change ul 10 volts
on 5~volt supp . Power Requirement: 100-135 VAC or 200-270 VAC, 60/50 Hz,
100 watts lull load. Dimensions: 4V2" H X 105/4" W x9" D.

Heavy-Duty Power Supply/ Battery Eliminator
Provides variable 9-15 volt output
$13495

capable of 12 amps continuous,

20 amps intermittent
Heavy-duty supply is the one you NEED tor reliable Ham and CB
radio servicing, any high-current 12-volt use. Features negligible rip-
ple; excellent regulation from no load to lull load. Has double heat
sinks with 4 output transistors, extra-large transformer for steady
smooth power.
Kit IP-2715, Shpg. wt. 31 lbs. ............................ 134.95

IF-2715 SPECIFICATIONS
Output Voltage. variable lrom 9- 15 VDC. Output current: 12 amps continuous,
20 amps intermittent (per daraling curve in manual). Ripple: less than 1% at
lull load. Regulation. less than 2% variation lrom no load to lull load. Fuses:
7A 3 AG slow- blow primary; 20A. 3 AG output. Power nequirements_110-1ao
VAC, 7A or 220-250 VAC, 3.5 A, 60/50 H1. Dimenslnns: 5%" H x11 W X11 D.

1-15 VDC Regulated Power Supply

$2495

Ideal tor service. design and testing
oi low-voltage solid-state equipment
-transistor radios, portable tape re
corders, etc. Has continuously ad-
justable 1-15 VDC output with 50 mV
line and load regulation...and fully
adjustable current limiting from 10
mA to 500 mA. AC or DC program-
ming capability lets you control out-
put voltage tlom another source. Three-terminal "floating" output
enables the lP-lB to lurnish positive or negative voltages. Has lront
panel voltage and current controls, on-otl switch and pilot light, bind-
ing post terminals. With three-wire line cord.

Kit lp-1a, Shpg. wt. 5 lbs. ................................ 24.95

Otters 3 Output Voltage:
lor Virtually Any Circuit Dealgn

Ideal for 2-way Radio Servicing,
High-Current 12-Volt Applications

0-400 VDc General-Purpose Power Supply

$99?5

A versatile supply for experi-
menters and service techs.
Provides 0~400 VDC at 0-100
mA continuous, 125 mA Inter-
mittent. Features excellent
llne and load regulation for
stable operation, even with
varying line voltages. Has lroni panel voltage and current meters,
built-in circuit protection. binding posts insulated lrorn chassis to
allow positive or negative high voltage and bias operation. Makes a
great general purpose supply tor the physics or chemistry lab.

Kit IP-17, Shpg. wt. 21 lbs. ............................... 99.95
Assembled SP-17A, Shpg. wt. 21 lbs. .............. . ...... 180.00

l
lP-IB SPECIFICATIONS

Ripple and Noise: Less than 5 mV. current Output: 500 mA maximum continuous

load. Current Limiting: Adlustable lrorn 10 nut to over 500 mA. Transient B:-

sponaa: 25 microseconds. Output Impedance: .5 ohm or less to 100 kHz. Power

Requirement: 120/240 VAC. 60/50 Hz, 15 W at lull load. Dimensions: 4% H x

5%" Wx 5% D. Programming: AC or Dc, 5000 ohm input resistance.

lP-17 SPECIFICATIONS
Additional Outputs: 0 to --100 VDC at 1 mA variable bias voltage, 6.3 VAC at 4
amps, 12.6 VAC at 2 amps. (25 VA max. Ac load), lilament voltage. Regulation:
Output variation less than 1% irom no load to lull load. Ripple: Less than 10 milli-
volis rmx. Output Impedance: Less than 10 ohms. no to 1 MHz. Meters: Volt-
meter (Him V or 0-150 V; Milllammelar 0-150 mA. Power Requirement: 120/240
VAC, 60/50 Hz,150W max. Dimensions: SW'H x13'la Wx 11" D.

Charge-A-Kit - no money down on any klt - no page 54 lor details. ' 65

Page 66

""w

Power your bench with Heathkit Supplies

Heathkit iP-5220 Variable Isolated AC Supply

0 Sale isolated source 0! Ac power tor service work

0 Variable 0-140 VAC output

0 1 A & 3 A ammeter ranges tor easy low-current readings
o Simultaneous metering ol voltage and current output

Every service tech and hobbyist needs a Heathkit lP-5220. With this
new variable AC source, you can isolate transiormerless equipment
ior safer operation when servicing. It provides complete isolation be-
tween the AC power line and any electrical equipment that is plugged
into its front panel variable output socket. The variable 0-140 volt out-
put is useful anywhere a slow run-up of line voltage is needed...like
the initial turn-on at that new breadboard project youve been building.
A full 360 volt-amperes 01 AC power is available at the front panel
variable output socket. More than enough to operate equipment with

large power requirements, such as a color TV. And the lP-5220 is
capable of supplying its iull rated output continuously.

The lP-5220's ability to start from zero voltage is helpful when trying
to locate circuit taults caused by high or low line voltage - or testing
equipment with unknown power requirements. You simply monitor the
output on the large voltmeter and ammeter as output voltage Is in-
creased. When excessive current is observed, power can be quickly
and easily removed before components are damaged.

For easier low current measurements. the ammeter has two switch-
selected full scale ranges of 1A and 3A. Fuses for both ranges are
front panel mounted ior easy replacement. The variable output socket
is fused to protect the lP-5220 and the circuit under test in case of a
short circuit. A socket for direct line connection is front panel mounted
tor convenience.

Kit lP-5220, Shpg. Wt. 27 lbs. ............................ 109.95

IP5220 SPECIFICATIONS
Input Voltage: 120 V @ 50 Hz ior speciiied ouiuul. Output Voltage: 0-140 V @
60 Hz. voltmeter Range: (1-1le VAC. Ammeter Ranges: 0-1 8- 0-3 A, AC. Output
Current: 3A max. 10A (direct line connection). Output Power: 360 Volt-Amperes
maximum. Dimensions: 5.5" H x15llw x 10.5" D.

Learn more about power supplies

Regulated Power _Supplies - covers static a dy-

namic characteristics. regulation techniques. use oi

integrated circuits and more.

EDP-152 .................................. 5.50
See page 52 ior book-ordering Iniormalion.

Famous 2700 Series power supplies NEVER PRICED LOWER!

These ultra-reliable supplies provide a precise, accurate
source oi voltage and current tor all your testing and de-
sign needs. They otter digital or analog readout. constant
current or constant voltage operation, complete output
protection. Choose one tor your bench and SAVE!

Choose analog or digital readout!

SAVE UP TO $170

Kit IPv2100, 60V@ 1 .5A analog, Shpg.
wt. 39 lbs. ..Was 149.95 Now 99.95
Assembled SP-2700. 60V analog.
Shpg. wt. 35 lbs. ................
was 220.00 Now 130.00

Kit 19-2701, sov @ 1.5A digital, Shpg.
wt. 40 lbs. ..Wu 199.95 Now 119.85
Assembled SP-2701. 60V digital,
Shpg. wt. 37 lbs. ................
WI! 300.00 Now 150.00

Kit IP-2710, anv @ 3A analog. Shpg.
wt. 34 lbs. . .Was 139.95 Now 149.95
Assembled SP-2710. 30V analog,
Shpg. wt. 34 lbs. ................
Was 255.00 Now 20.00

KII IP-2711, 30V @ 3A digital, Shpg.
wt. 36 lbs. . .Was 215.95 Now 199.95
Assembled SP-2711, 30V digital.
Shpg. wt. as lbs. ............ .
Wu 340.00 Now 30 . I)

66

Kit lP-2720. 15V @ 5A analog, Shpg.
wt. 34 lbs. . . .Was 149.95 Now 99.95
Assembled SP-2720, 15V analog,
Shpg. wt. 32 lbs. ................
W09 220.00 Now 130.00

Kit lP-2721. 15V @ 5A digital, Shpg.
wt. 36 lbs. . .Was 199.95 Now 119.95
Assembled SP-2121, 15v digital.
Shpg. wt. 35 lbs. ................
Was 300.00 Now 150.00

Kit IP-2730, 7.5V @ 10A analog, Shpg.
wt. 36 lbs. . . . Was149.95 Now 79.95
Assembled sp-zrao, 7.5V analog.
Shpg. wt. 34 lbs. ................
Was 220.00 Now 100.00

Kit "1-2131, 7.5V @1OA digital. Shpg.
wt. 38 lbs. . . .Was 199.95 Now 99.95
Assembled SP-2731 7.5V digital.
Shpg. wt. 35 lbs. .
Was 30 . I) Now 130.00

ideal for powering breadboard circuits, electrical compo-
nent testing. or as a power source lor bench use. All feature
remote programming and voltage sensing: simplilied lront
panel operation, Digital readout types have two decade
auto-ranging tor high resolution on low voltage and current
settings. Choose from tour DC models: 0-7.5 V @ 10 A;
0-15 V @ 5 A; 0-30 V @ 3A; 0-60 V @ 1.5 A.

J

IPISP~27DD SERIES SPECIFICATIONS

(NOTE: Specs measured In accordance with NEMA standards (FYI-1972)
alter 30-minute warmup period.)
Max. Ruled Output: Models USP-2700 at 2701: Gov. 15A: models lP/SP-2710 5-
2711: SUV. 3A; models IP/572720 & 2721: 15V. 5A: models lF-2730 5 2731: 7.5V.
10A. Load Regulation: Voltage: t0.05°/o +1 mV. Current: i0.10% +3.5 mA.
Line Regulation: Voltage: 10.05% +1 mV. Current: 10.10% +1 mA. Ripple 5
Noise: Voltage: 1 mv HMS; 0.03% oi rated output, peak-lcrpeflk. Voltage/Current
Handout (Switchable): Analog: 3V1". 100°, meler. Digital: 3lz-digit (1999). two-
decade, autoAranging, digital meter. Readout Accuracy; Voltage: Analog $354. of
rated output: Digital 10.5% oi reading :1 count using lab standards, :1.0% of
reading :1 count using built-in calibrator. Current: Analog - 23% 01 rated out-
put; Digital - 11.0% at reading :4 count usrng lab standards. 21.5% oi read-
ing :4 count using punt-in calibrator. Readout Response Time: (Dlgital): 2 sec-
onds to within 5 counts. Stability at Output Terminals: Voltage: 201.01% + t
mV)/hr. Current: 20.05% + 1 mA)/hr. stability as Displayed (Digital): Voltage:
iiimfl/o + 1 mV + V: count)lhr. Current: 20.01% + 1 mA + V2 comm/hr.
Operating Modes: Constant voltage. constant current. auto-series. auto parallel.
Programming Mode: Voltage: A-IeID [0 rated output With 0 to 5.0 voc applied:
B-zero to rated output with 0 to 5000i? external resistor, Current: Zero to rated
output with applied voltage oi 1.0 volt/amp (0.1 volt/amp ior lP-2131). Program-
ming transient response: 01 ms ior low current to high current changes: 1.0 ms
tor high to low. Load resistance less than 10 x (E Rated/mated), Power Require-
ments: 120/240 2 10/20 VAC: 60/50 Hz. 2.0/1.0 Amps max. Overall Dimensions:
5.5 H x15 W K135" D.

Charge-A-Kit - no money down on any kit - see page 54 lor details.

l
l
E

Page 100

nnxrn rut

Six bands .. .AM, $33 and cw. .. plus portability
$16995 An ideal standby receiverifor your'sfation...

a top performerforgeneral listening too

TheHeathkit (ER-78 is a favorite of discriminating SWL's. Hams. trav-
elers. vacationers-anyone who wants a take along portable re-
ceiver for lively and interesting listening. Covers 190 kHz to '30 MHz
for foreign broadcasts. ships at see. local Ham radio operators, AM
stations loo.

Features an Automatic Volumecontrol to prevent fading and blasting
when tuning through weak or strong signals: Automatic Noise Limiter
to cut annoying noise and static. Has a front panel S" meter for all
bands 500 kHz crystal calibrator. receiver/standby switch muting

. connection and headphone jack

,éovers 152-174 MHz VHF for fascinating local police.

ilt-in telescoping antenna helps pull in stations. there' 5 even an
external antenna input. Includes built-in nickel-cadr'nium rechargable
and AC charger. Easy kit construction loo.

Kit art-1a. snpg. wt. 13 lbs. ..... . ....................... 159.95

nude SPECIFICATIONS: Frequency coverage: 190 kHz-410 kHz; 550 kHz-Itioo kill:

l.3 MHl~3.0 MHZ; 30 MHZ -7.5 MHZ: 75 MHz-150 MHZ' I50 MHz 50 MHz. Sensltiv.
Ity: 0 2 IIII- Io Irv depending on bend and portion thereof. Seleetltfityn .5 kHz 9:!
@ 8 us down. Battery: 9.6 VDC 500 mltn Nlckai- Cadmium rechergaeie Dimensions:
GYMH XI1V1WXWrD.

Exciting Portable VHF/FM Monitor

tire and emergency service listeningl Has telescoping
antenna to help pull in stations. rugged case with carry-
ing handle for easy portability. It's an easy and enjoyable
kit to build too. a great gift idea. Tunes the complete
hand. no extra crystals are needed.

Kit Gil-OB, Shpg. wt. 5 lbs. .................... 49.95

(SR-BB SPECIFICATIONS: Tuning Range: 152474 MHz. Antenna In-
put: 50-75 ohms. Sensitivity: 2.0 uv or less for 20 dB ouiailng. IF
Selectivity: :40 ktix @ one down. Image Rejection: 40 dB or greater.
lF'Relectlon: soda or greater. SpBIkA": a round. Batteries: Six 1.5 V
"C" calla. not supplied. Dimensions. Va" H x 8% W K3Yz D.

'Heath

y..»

4-Band Shortwave- just right for the beginner
$6995 Listen in on Worldwide Shortwave

broadcasts, CB, marine - even AM radio

ll you're looking for a great first- time kit - or just a great low- riced
shortwave receiver - the SW- 717 is for you. If s an ideal introduction
to kit construction - and the assembled radio will bring you years of
entertainment. It's an all time levorite Christmas gift too!

Tunes foreign broadcasts from all over the globe - amateur and CB
radio bands - local and marine weather reports - ships at sea- 'plus
standard AM - It's a world of exciting listening at your fingertips!

Features wide slide-rulejtuning dial with logging scale; bandspread
tuning for easy separation, of crowded stations, variable BFO for code
reception; built-in speaker; front panel jack for external speaker or
headphone; witchable automatic noise limiting: signal-strength tun-
ing meter; built-in AM rod antenna plus connection for SWL antenna.
Its the one to buy and build to start a' {ascinating kit hobby!

Kit SW-ll'l, Shpg. wt. 10 lbs. . . . .

sw-TIT SPECIFICATIONS: Frequency coverage: 550 kHz-i500 kHz. LII-4 MHz. [-
io MHz. 10-30 MHL Meter; Indicates relative signal strength. Headphone Jack:
Accepts low impedance headphone or external speaker. Loudspeaker: Built- in. Power
Requirement: I20/240 VAC. 60/50 Hz. a W. Dimensions. 5V: H x til/z" WXB D.

ASWL Accessories

Superex Headphones.
7

ideal ior use with both
Heeihkii swL's were.
many others. Feature duel
coils ior excellent sensi-
tivity. wide headband tor
eomtortabte listening.
500 ohms impedance.
63.4556. assembled.
Shpgnltt. I lb... .. .505

Leno-wire slllL antenna.
Really helps you pull In
stations! 15" long wire wiin
3W leed and hardware lor any
setup. A must for
serious listeners.
OWL-72. Shpg'. M.
Zlbs. ...... 1.50

NEW! Police-Cali, Fire, Emergency Radio Directories
Late-t edition. Lisle city. county and state emergency
services. Order the one for your region.
ORA-11.040. Vol. 1 -Connecticut Maine. Mass-chu-
Bette. New ampahire New York

BRA-11M, Vol. 2- Delaware, Maryland New Jers-
,sey. Perrrraylverrle .
fluwl1m-12.Vul.3-Dhlo. M
ORA-110043. Vol. 4- Illinois, lndiana. Kontu
wheonsln
GIA- 1100-14. Vol. 5- Iowa. Kaneas. Mrnnesota,
sour]. Nebraska, North and South Dakota
GM1100-11,Vol.B-A
redo. ldaho. Montana. New Mexico.
Nevada. Ui Wyom
CM- M-II, Vol. 8- Gllltflm 0'-
won. Washington .. 35
See page 52 tor
book ordering inlormetion.

BHA- 1100- 15. Vol. 8--

Georgia. North Carolina south c

line. Virginia. Welt Vifdinle .

Gl'lA- 4100-10. Vol. 1-Alelrerne.
Loni-lane. Mmlssiptri. Girl-lg);

DC. Flotld

Inc. Team. Your ..

Informative SWL books

Sm. Guide. lnvelulble reiererrce for beginnerl or "Frue"- Latest updltld edl-
tlon lists all! signs. irequencles and addreuee lur Shortwave. FM and TV
stations worldwide. Euy-io-reed type and lattice. GDP-315,2 Ibe.

shortwave Lllletier'l Handbook-covers buts o lament to rrrodilicetiens.
characteristics at receivers and antenna. BI and reception reports.
Ilets rneiur shortwave stations by country and imuency. EDP-.196

Alc'e ot shortwave Lieterrlng- program: available, how to enloy SW Ileien-
Ing: receivers and antennas In non-technical terms. EDP-154 3.50

u Ways to Improve your Shortwave umnlrrg- antenna and their Installe-
tlorI. wcelvere. accessories. listening techniques. special bends. Imam»
ehoollng.EDP,15§ .4

Hour to Hear Police. Fire and Alrerltt Radio -
and mobile installations. EDP-153

guide to VHF recent

See page 52 tor book ordering information.

100

Order early for best selection! Phone (616) 982-3911 day or night.