Heathkit DX 60B Schematic

Page 1

V2

VI 6CL6
VFO T CRYSTAL ecu, a DRIVER BAND SWITCH
INPU REAR w
O SWITCH CRYSTAL OSCILLATOR 47 AFER FINAL
UHF
It VARIES WITH
VARIES 0 L2 NEUTRALIZING STUB /,
_ WITH DRIVER 5,, I00
_ Cl ID 9 CRYSTAL PLATE . I
-_ (E) 3'} ACTIVITY 9 4OMETER
.DoI . M as ® 9
// 90 .005 2 2' |.| MH I
4, 6 0 |..L|.LF
- : IMH
I I I I I I I R, _
7K C6
xa xa x2 xI' 4 C3 005
I00 7..
I'LF- _ R6
3 _ _
.505 - '5 : DRIVE LEVEL 2W
0
R2
33R 92! 'W GRID
R20 33" €33 METER
- 470K SWITCH
: = + 350V
'-\W H 20 V4
63, I ODE!
R22 MODULATOR -
.005 V5 470K - R25
'-II- - IMEG 0 -
I2AX7 . _
SPEECH
AMPLIFIER -
MIKE (30
INP T m7 \ /
U 4700 '00' - \ R19 0
o m . |( O - - - I / e __
IDOK C32 \
€29 eAUD'O OOI
: Rib loo: 2.9128 GAIN . . .
I MEG up ~ MEG 928 FUNCTION I
I0 I- SWITCH :
REAR LU
I

KEY JACK
NOTES:
ALL RESISTOR VALUES ARE I/z WATT UNLESS SPECIFIED OTHERWISE.
: ALL RESISTOR VALUES IN OI-IMS; K = 1000. MEG = 1,000,000.
ALL CAPACITOR VALUES IN Id UNLESS SPECIFIED OTHERWISE.
ALL SWITCHES, EXCEPT THE CRYSTAL SWITCH, ARE VIEWED
FROM THE REAR. THE CRYSTAL SWITCH IS VIEWED FROM THE
. f 0,) SHAFT END.
Schemuhc O the HEATHK FUNCTION SWITCH SHOWN IN OFF POSITION.
BAND SWITCH SHOWN IN 30 METER POSITION.
AMATEUR TRANSMITTER INDICATES VOLTAGE READINGS.
V LTAOES TAKEN WITH FUNCTION SWITCH IN AM POSITION.
Model D X - 6 O B VOLTAOES TAKEN WITH AN II MEGOHM INPUT METER. v3
VOLTAGE READINGS ARE DC UNLESS SPECIFIED OTHERWISE. <
VOLTAGES MAY VARY 110%. 5mg,
VOLTAGES TAKEN WITH DUMMY LOAD CONNECTED.
6CL6 6CL6 614-6 FINAL LON-PASS
o -i- -4D- -.F
E-ffl OSCILLATOR DRIVER AMPLIFIER FILTER
.
m I 1 I I A A I
@-0
l C
GRID BLOCK KEYING
GDET CARRIER
IZAXV SPEECH
AMPLIFIER CONTROL
MODULATOR BLOCK DIAGRAM
300 VOLTS
-I30 VOLTS
POWER SUPPLY 600 vows .
6.3 VOLTS AC

FILAMENT