General-Electric-Co-424 电路原理图.pdf

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1、MANUAL OF I9S4 MOST-OFTEN-NEEDED RADIO DIAGRAMS GENERAL ELECTRIC Models 450, 451, and 452 Models 424 and 425 are similar. ALIGNMENT CHART jfil CONNECT TEST OSCILLATOR TO KSHiail RADIO DIAL SETTING ADJUST FOR MAXIMUM 1 V2.12BA6 grid (Pin 1) In series with .05 mfd. 455 KC Cores of second I-F trans. T3

2、 2 V1.12HE6 grid (Pin 7) In series with .05 mfd. Cores of first I-F trans. T2 5 Recheck adjustment of T3 and T2 1 R-F ALIGNMENT 1 1_ Inductively coupled to radio loop 1620 KC Tuning gang open C1D, oscil lator 5 1500 KC For maxi mum BH1 *Rock tuning gang for maximum, while adjusting CIA. Chassis Remo

3、val The tuning knob Is captivated to the cabinet by- means of a spring clip and therefore cannot be pulled away from the cabinet In the usual manner. After loosening the chassis, simply pull It to wards the rear to disengage the tuning gang shaft. CAT NO. SXMBGL DESCRIPTION RCE-160 C11A.B 50-50 mf.,

4、150 V.,cardboard tubular electrolytic . RCN-050 C12 ,02mf,600 V., paper molded RCN-053 CIO 047mf., paper molded . RCT-066 C1A.B, C,D Tuning, two gang . RCW-3048 C9A.B, .002mf,400mmf., 220mmf., C,D 005mf.,ceramic couplate. RCW-3075 C2 47mmf.,20$,N2200,ceramic UCC-045 C3,4 .05mf., 600 V., paper . RESI

5、STS RRC-205 R4,S1 50QK ohms, volume control and switch. UKD-021 R1 68 ohms,10$,1/2 w.carbon URD-025 R10 100 ohms,10$,1/2 w. carbon URD-029 R8 150 ohms,10#,l/2 w. carbon URD-081 R1 22K ohms,10$,1/2 w. carbon URD-113 R6,7 470K ohms,10$,1/2 w.carbon URD-129 R5 2.2 megohms,10$,1/2 w.carbon URD-141 R5 6.

6、8 megohms,1/2 w. carbon. URF-053 R9 1500 ohms,10, 2 w. carbon. CO LS AND TRANSFORMERS RLC-122 COIL -Oscillator coil. RTL-143 TRANSFORMER -1st 1-f. RTL-163 TRANSFORMER -2nd 1-f. RT0-128 TRANSFORMER -Audio output . MISCELLANEOUS ELECTRICAL Rn-081 WAFER -Part of 1 -f trans. receptacle Rn-082 WAFER -Par

7、t of tube receptacle. RJC-004 CONNECTOR -Loudspeaker connector, fern. RJC-027 CONNECTOR -Tube pin connector, part of tube receptacle. RJC-028 CONNECTOR -Oscillator coil receptacle RJC-029 CONNECTOR -Wire push-on type terminal for i-f connecting lead. RJC-030 CONNECTOR -I-F wafer. RJC-031 CONNECTOR -

8、I-F wafer. RWL-025 CORD -Power cord and plug,brown, for Model 452 . RWL-026 CORD -Power cord and plug,ivory, for Models 450, 451 . S403D7 LOUDSPEAKER -4 Inch PM . MISCELLANEOUS MECHANICAL *RHC-024 CLIP -7/0 in. electrolytic mtg. clip RHC-061 CLIP -Holds textolite sub-chassis. RHC-081 CLIP -Tuning kn

9、ob retaining clip. RHE-014 EYELET -Tube receptacle mtg. RHE-016 EYELET -i-f receptacle wafer mtg. *RHG-0l8 GROMMET -Rubber grommet for tuning capacitor shock mounting . *RHI-017 STRAIN RELIEF -vo piece strain relief for power cord entrance in chassis *RHJ-005 SPACER -In grommet for shock mtg. tuning capacitor . *RHS-109 SHIELD -Insulating spacer, black textolite In chassis tube holes . RHS-110 SHIELD -Tube shield for 12AV6 tube_ 收音机爱 好者资料库 RadioFans.CN