Page
282
SCHEMATIC OF THE
HEATH KIT^
TRANSCEIVER
MODEL
SB-104
NOTES:
1.
ALL RESISTORS ARE 112 WATT UNLESS OTHERWISE SPECIFIED.
VALUES ARE IN
SI
IOHMSl. K-1.000: M=1,000,000.
2. CAPACITOR VALUES LESS THAN
I
ARE IN liF
VALUES OF
1
AN0 HIGHER ARE IN pF UNLESS OTHERWISE SPECIFIED
3.
THE BANDSWITCH IS SHOWN AT THE
3.5
MHz POSITION AND
THE MODE SWITCH AT LSB.
4.
REFER TO THE PIN-OUT DIAGRAMS AND IDENTIFICATION
CHARTS FOR INFORMATION CONCERNING TRANSISTORS.
DIODES. AND INTEGRATED CIRCUITS
IICsi.
5. REFER TO THE APPROPRIATE PARTS LIST FOR CROSS~REFERENCE
BETWEEN SCHEMATIC COMPONENT DESIGNATIONS AND PART
NUMBERS.
6.
CHASSIS WIRING
-
SEE FIGURE 5-1 ON FOLD-OUT FROM PAGE 323
7.
SYMBOLS:
+%-
A PLUG-IN CONNECTION.
=
CIRCUIT BOARD GROUND.
;
CHASSIS GROUND.
0
=
IDENTIFIED CIRCUIT BOARD HOLES.
-
CIRCUIT BOARD EDGE CONNECTOR.
FERRITE BEAD.
@
-
PHONO SOCKET.
BIPOLAR TRANSISTOR
GATE
1
DRAIN
GATE 2
SOURCE
MOSFET
.
DRAIN
SOURCE
J
FET
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