Gamble-Skogmo-Inc-43-8190 电路原理图.pdf

MANUAL OF 1948 MOST-OFTEN-NEEDED RADIO DIAGRAMS Gamble-Skogmo, Inc. CORONADO RADIO MODEL 43-8190 ALIGNMENT PROCEDURE I Allow unit to heat for a few minutes before starting alignment. Volume control set to maximum. Output meter across speaker. Align for maximum output. Keep input as low as readable meter reading of output will permit. Note: If signal generator is AC operated, use an isolating transformer between the power supply and the radio receiver power input. The use of an isolat ing capacitor is not recommended as AC through the capacitor will introduce hum and/or create the pos sibility of a burned out signal generator attenuator. SIGNAL GENERATOR GROUND TUNING ADJUST TRIMMERS FOR .FREQUENCY COUPLING CONNECTION CONNECTION CONDENSER MAXIMUM OUTPUT CAPACITOR TO RADIO SETTING (in order shown) 1720 KC 1500 KC SYMBOL Cl 200 mmf Converter grid Receiver antenna post Receiver antenna post Wide open Wide open 2nd IF transformer trimmer 1st IF transformer trimmer Oscillator trimmer C3 Tune for maximum output Antenna trimmer Ci TITLE Antenna trimmer Variable Condenser ant. section Variable Condenser osc. section Oscilaltor trimmer VALUE RATING TOLERANCE C8 Mica capacitor 220 mmf 500WVDC 20% C9 Paper capacitor ,O05mf 600WVDC +40-15% CIO Mica capacitor 220 mmf 500WVDC 20% Cll Paper capacitor .Olmf 600WVDC 20% C12 Paper capacitor ,02mf 600WVDC 20% C13A Electrolytic capacitor 30mf 30mf 150WVDC C13B Electrolytic capactor 150WVDC C14 Paper capacitor .05mf 600WVDC 20% C15 Paper capacitor ,05mf 600WVDC 20% C16 Paper capacitor ,05mf 600WVDC 20% C17 Paper capacitor .01 mf 600WVDC 20% C19 Paper capacitor .lmf 600WVDC +20-10% C20 Paper capacitor ,02mf 600WVDC 20% C21 Paper capacitor ,005mf 600WVDC +40-15% R1 Carbon resistor 22,000 ohm 20% R2 Carbon resistor 2.2 megohm biW 20% R3 R4 Volume control Carbon resistor 0.5 megohm 4.7 megohm %W 20% R5 Carbon resistor 470,000 ohm %W 20% R6 Carbon resistor 470,000 ohm %w 20% R7 Carbon resistor 150 ohm HW 20% R8 Carbon resistor 2700 ohm 2 W 20% R9 Carbon resistor 18 ohm biW 10% R10 Carbon resistor 470,000 ohm %v ii6% Rll Carbon resistor 470 ohm 14W 20% R12 Carbon resistor 470,000 ohm %w 20% l?SA7 h-, tJ I2S07 fOL6C PART NO SCT-0T3 SCT-0H3 * UCU-036 UCC-044 UCU-036 UCC-040 UCC-041 SCE-026 SCE-026 UCC-045 UCC-045 UCC-045 UCC-040 UCC-048 UCC-041 UCC-044 URD-081 URD-129 SRC-070 URD-137 URD-113 URD-113 URD-029 URE-059 URD-007 URD-113 URD-041 URD-113 in f fJCl 1/C20 _ I-T-U3 ROk ctg FRONT OF CHASSIS 117 VOLTS AC LINE NOSIGNAL INPUT VOLTAGES MEASURED BETWEEN SOCKET TERMNALSAW8- WITH2Q000OHM PER VOLT METER VOLUME CONTROL MMMUM INDICATES AC VOLTS I2SG7 ,2SK7. 48 mw tef 收音机爱 好者资料库 RadioFans.CN 收音机爱 好者资料库 RadioFans.CN 收音机爱 好者资料库 RadioFans.CN