Heathkit W4 AM Notice Montage

Page 1

PRICE $1.00

Assembling

and Using Your. . .

WILLIAMSON TYPE

AMPLIFIER

MODEL W4-AM

HEATH COMPANY

A Subunlrfly of Dmysvrnm W;

BENTON HARBOR, MICHIGAN

595-107

Page 2

STANDARD COlOR CODE - RESISTORS AND CAPACITORS

INSULATED FIRST RING SECOND IUNG TIIIRD IIING
lel. [ID RESISTOR IININSIIATED RUDY COLOR END (101.0" DOT COM)
lam-Insulated Color First Figure Second Figure Multiplier DIS< (EIMK MA (ODE
""" '"'"" BLACK 0 0 None ¢
\ HHIMVN I 1 0 'W'"
I 5 ) 2 2 00 .
§ = I III A N (IE 3 3 .000 """Hm
H | low -I I 0.000 urn-u
'- lulu-In - 5 5 00.000
IAIIIIplIn 0 6 000,000
In and 1nd srpifimn III-nu 7 7 0.000.000 M (I
win mud mimn Inn ,1 I .1, 3 1 0"-"-°"
. dunk, mu. wan. . I) I 000000.000
RADIAI mo not RESISTOR $00! tutti tun CERAMIC (APAtIIOIt [mango use r: (mum: mt"
M'l'i'n" Yang. (Ill. 9""?

I "gm

It: Multiplkr M-Mpllu Ida-a

RADIAI. lEAD (RAND) RESISTOR AXIAl lEAD CERAMIC CAPACITOR
u-Iiiullu "W. ("I _ ("w
molar
I-lvlpllu Multiplier lulorna
mum. tang...

The standard color code pIOVltlLS all necessary information re-
quirml to prnplrl) identify color coded rtsistors and capacitors.
III-for to tho color (Utlt for numerical values and the zeroes or
multipliers ussigut-(l Iu tln~ t'olom used. A fourth color band on
resistors (lt'ttrminos toleramu rating as follows: (iold = 57}.
siln-r : I(I"". AINnon of tho fourth band indicator; a 20%
tolerance rating.

The physical size of carbon resistors is determinrd by thrir
wattage rating. Carbon resistors most commonly usr-d in Ilvath-
kits arr- 12 watt. Higher wattage rated I 'istors whr-n sprriliwl
arc progrussiwly largrr in physical . Small win: wolnnl
rt-sistors 1/2 watt, 1 or 2 watt may be Color coded but the Iirst
band will br- tl()tIl)lt width.

MOlDED MICA TYPE CAPACITORS

CURRENT STANDARD CODE an :TDVOD CO'SORIDIJLHTDl BUTTON SllVER MICA
m. (nu) "flags... aw. ii: : ----- - 0:5?me
Illrl UAN) Mumplhr Ill Mulflpllu 1." st
D
(lass InIu-(c (OD! 2": l Stallion! [I'm n'mplluad liil 2':
ml "MA (590! 0'50 CODE) RMA 6-DOT (OISOlETE) RMA A-DOT (OISOIETE)
III
Sipifiult figun w"'l:--® Tutor-m '3
V Si 'i ll
mums" m nayum 3:3} "' "" "m mm... v.0...
Iron
Ia sag-mm Flynn _
- wan... v.0... l my, Multlrllu NIH-v
I
I :: vu'lev-u Hull-g Tlllllltl Wuli:.tloltqc '5ika "9'"
VII Ink
MOlDED FlAT CAPACITOR JAN. CODE CAPACITOR
TUIUlAR (APACIIOR 7:3; Fm", "m a... (.4. I"; ma...
lilflplkr wan-g v.05 "w-
' Numdly PM
= I I§ I§ '\ =| sI-llpod In My
\ "I...
1.4.... M strait-n - lulttplkr Implic-
ml v.0... n."- 1-H I
:J y$zlmzmlruigkr no: Ni- .00 V. m l Fl.l "F" (hwtorillk ll 01-

The tolt'rancv rating of capacitors is rlvtr-nnimd by the color
('(Kll't For I-xamplv: ml 2 2"}. grwn - l». etc. The voltage
rating of capacitors is obtained by multiphinu lht' color valut'
by IIIO. For r-xamplc: orange = 3 X 100 or 300 \oltsr lllut =
0 X lflll or 600 volts.

In thcdosign of Ileathkits. lht tompr-ratun- ('1 n'lliriI-nt of ('xl'amic
or mica (nparitovs is not arm-rally a (tritiral far-tor and Ihvrtu
l'ort- llcathkit manuals avoid rote-rune" to temperature cor-Ili-
ciunl spvrilicalions.

Connery oI Cenllulob