Fig. 5. Transmitter Tuning Unit Tu-5-B, Connection Diagram - GE BC-375-E Preliminary Instructions

CONNECTOR DESCRIPTION
NOTE FOR SOLDERING :-
WIRE TO BE FASTENED MECHANICALLY TO
TERMINALS BEFORE SOLDERING. USE ROSIN
CORE SOLDER 820 D3C.
THERE SHALL BE NO SHARP POINTS LEFT
AFTER UNIT IS WIRED EITHER FROM LUMPS
OF SOLDER OR IRREGULARLY CUT WIRE ENDS.
SYMBOL
NAME
OF UNIT
501 M.O. TANK INDUCTANCE
502
M.O. BAND CHANGE SWITCH
503
M.O. FIXED TANK CAPACITOR
504 • • • "
505 • • • •
506 • • • • •
507 M.O. VARIABLE TANK CAPACITOR
SOB P A. GRID CHOKE
509 • • BLOCKING CAPACITOR
510 M0 • • •
511 • •
CHOKE
512 NEUTRALIZING CAPACITOR
5 I 3 M O. TANK COMPENSATING CAP
514
• ^
•
51S •
•
• •
516 * " "
517
M.O. GRID PARASITIC RESISTOR
321 PA TANK INDUCTANCE
522 P.A. BAND CHANGE SWITCH
623 P.A. FIXED TANK CAPACITOR
524 • • •
625 • • • •
527
P A. VARIABLE TANK CAPACITOR
528
ANT COUPLING COIL
529 • * SWITCH
utlIT PIECE Of APPARATUS
.102 DIA COPPER WIRE TINNED.
M
(NOT MARKED
CABLE THESE LEADS.
START (BLACK)
TAP*! (BLUE)
TAP* 2 ,BROWN)
TA 03 GREEN)
TAP°4 'RED)
TAP*5 !ORANGE),
FINISH (ORANGE /BLACK)
529
522
2
VW_ \
_
Ora-
FRONT
527
T •
25
TOP
509
I
50 7
501
510
T
516 0
506
515 0
505
SO 514 Q
SO
7 -11 - 1- T TTTT
511
FRONT
524
526
523
521
•
THESE CAPACITORS LOCATED
UNDER SYMBOL 527
504
613 0
503
THESE CAPACITORS LOCATED
UNDER SYMBOL 507
NOTE - AT POINTS MARKED ''X" USE TERM V- 14 4 4 4 51
• •
* • z•
^ "
1-78T2217
• •
• • Y" * • K -7872831 C)
• •
• • W" • • K- 71172 366
• •
• ^ T« • • K -78 72306
l• •
S" SOLDER COMPLETE JOINT TOGETHER
S
TOP OF COIL
Fig. 5. Transmitter Tuning Unit TU-5-B, Connection Diagram