Emerson-Radio-and-Phonograph-Corp-DL330 电路原理图.pdf

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1、MANUAL OF 1941 MOST POPULAR SERVICE DIAGRAMS MODELS DL-330 DB-296, DB-301, DB-315 and DB-327 CHASSIS MODEL: DB I Part No. I CHASSIS MODEL: DL DW-330A, DW-330B and DW-358 CHASSIS MODEL: DW DESCRIPTION LI T4 T4 T2 T2 T3 R1 R3 R4 R5 R5 R5 R6, R2 R7, R8 R9 Cl, C2 C5, Cll C6, C7, C8, C9 CIO, C23 C14 C12,

2、 C15, C4 C16, C3 C17, Cl9 C20, C21 C22 I ANTENNA CONNECTION 7BW-179 7BT-486A 7BT-486 7BT-545 7BT-488 7BT-550B LR-60 3FR-293 NNR-220 7LR-378 7BR-363 7WR-389 4XR-327 KR-56 LR-61 7BC-445 7BC-445A BC-12 LC-64 4XC-394A 3HC-274 6JC-425 6JC-426C 3CC-302 Loop antenna assembly.- - Oscillator coil (DB 1 and D

3、L1).-.-.-.-.-. Oscillator coil (DB, DL and DW)- Double-tuned 455 kc first i-f transformer (DB, DB1, DW). Double-timed 455 kc first i-f transformer (DL, DLl)- Double-tuned 455 kc second i-f transformer (see production change No. 1). 20,000 ohm M watt carbon resistor-. 140 ohm Vz watt wire-wound resis

4、tor- 3 megohm watt carbon resistor.- Volume control .5 megohm with line switch (DL, DLl).- Volume control .5 megohm with line switch (DB, DLl)- Volume control .5 megohm with line switch (DW)- 15 megohm 14 watt carbon resistor.- 500,000 ohm )4 watt carbon resistor.-.-. 200,000 ohm 14 watt carbon resi

5、stor (DB1 and DLl). Two-gang variable condenser (DB, DB1 and DW). Two-gang variable condenser (DL and DLl)- Trimmers, part of variable condenser. Trimmers, part of i-f transformers. 0.05 mf, 200 volt tubular condenser (C23 used in DB1 and DLl). 0.05 mf, 400 volt tubular condenser.-.- 0.00022 mf mica

6、 condenser- 0.002 mf, 600 volt tubular condenser.-.- 0.024 mf, 400 volt tubular condenser.-. Dual 20 mf, 150 volt dry electrolytic condenser- 0.15 mf, 200 volt tubular condenser (DB1 and DLl)- IF PEAKEO AT 455 KC I2SA7GT I2SQ7GT 50L6GT OUTPUT TRANSFORMER ON SPEAKER IF 455 KC. 35Z5GT 450 0MMS | 020 f“C2l LINE SWITCH ON VOLUME CONTROL EMERSON RADIO o o * vj COMPILED BY M. N. BEITMAN, SUPREME PUBLICATIONS 收音机爱 好者资料库 RadioFans.CN 收音机爱 好者资料库 RadioFans.CN