RCA-Victor-Co-Inc-R-7-LW 电路原理图.pdf

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1、PAGE 36-A R -7 -LW ELECTRICAL SPECIFICATIONS Voltage Rating 100-230 Volts Frequency Rating 40-60 Cycles Power Consumption 100 Watts Antenna Length 25-75 Feet Circuit A.C. Screen Grid Super -Heterodyne Radiotrons 2 RCA -235, 1 UY-224, 2 UY-227, 2 UX-245, 1 UX-280 Total of 8 Loudspeaker Dynamic Undist

2、orted Output 3 0 Watts Frequency Range 550-1500 K.C. and 150-300 K.C. TO /CURIO, GROUND Alignment Procedure With tun1ng c.)ndenser fully Zia.a-721 IIPACZ441206761 11;Af s re 104/ T-xt T 3 01, 131,553, I % 13-4,r2g. wNeCE z vcrAces ARE GIVEAI, FIRST 1.7 WITH VOLUM. with peInt.i. STEP cfoNNI17: H SIDE

3、 OF TEST OEC. TO - TUNE TEST OSC TO - 111PN RADIO DIAL TO ADJUFT THE DOLLOWING FOP MAX. OUTPUT I-P Grid In erieswtth 0.01 mf:i 110 Ks Qd4( t point near 80 BCC Band S 1400 Kc Trimmer:, 4 300 Ks Receive Signal LW Band 300 Ks Trimmer:, Rock Gang 5 150 Kc Receive Simal near 80 LW Band 150 Kc Trimmers Ro

4、ck Gang 6 Repeat Step 3 3 P RESISTOR BOARD CONNECTIONS Location of various line-up capacitors RCA VICTOR DIVISION OF RADIO CORPORATION OF AMERICA, CAMDEN N. J., U. S. A 收音机爱 好者资料库 RadioFans.CN PAGE 37-A R -7 -LW LINE OPEN TURN RADIO VOLUME CONTROL TOMINIMUM (COUNTER -CLOCKWISE) VOWS SWITCH IS AT REC

5、ORD -TERMINAL SOARS 23 ENOAT REAR OF CHASSIS 1 5.000 00 RECORDRADIO PICAO MI stress VOLUME CONTROL 0 (emitPOLE, DOOM THROW SWITCH USED AS .14010 -RECORD SWITCH _VOLUME CONTROL AND TO MATCH PICKUP DTSANSPORMNUNS OHO Magnetic Pickup Connections RED 110V. 125 V. 150 V. -BLACK WITH RED TRACER YELLOW- YE

6、LLOW BROWN BLACK AND BROWN BROWN BLUE BLACK AND BLUE BLUE BLACK INTERNAL CONNECTIONS OF POWER TRANSFORMER YELLOWRED BLUEGREENREP AND AND AU C-23,1Oaf_ 1C19 C-24 CALLBLACK .1-. j3.-16 1513j2.71-7844. 1-M. Aim 0-71-1-.,FD._ 0. BROWNYELLOW II. BLACK MFD. INTERNAL CONNECTIONS OF CAPACITOR PACK -YELLOW T

7、-2 BLUE- INPUT TRANSFORMER LACK AND BLUE -GREEN BLUE -RED T-3 BLACK RED AND BLAC REPLACEMENT PARTS OUTPUT TRANSFORMER -REDBLACK - INTERNAL CONNECTIONS OF AUD 0 PACK Stock No. DESCRIPTION LiatStock No. DESCRIPTION List RECEIVER ASSEMBLY 3227Coil-Antenna loading coal 2240Resistor -30;1)00 Ohms-Carbon

8、type-Package of 1.3228Switch-Toggle switch for band changing 2546Resistor -1,000,000 Ohms-Carbon type-Package3230Coil-let detector and oscillator coil of 53231Control-Volume control-Complete with mounting 2563Resistor -6,000 Ohms-Carbon type-Package of 5 nut 2731Resistor -10,000 Ohms-Carbon type-Pac

9、kage of 5. 3232Capacitor -280 MMFD-Package of 5 2746Socket-Dial lamp socket 7054Cord-Power cord 2747Caps-Grid contactor cape-Package of 5 7062Capacitor-Adjustable oscillator trimmer capacitor - 15 -70 2749Capacitor -2400 MMFD 7063Capacitor-Adjustable trimmer capacitor 5-40 2875Knobs-Station selector

10、, band selector or volume control knob-Package of 5 7065Screwdriver -Non-metallic screwdriverforline-up adjustments 2881Bracket-Dial lamp bracket-Package of 5 7238Capacitor-Comprising four0.5 M F D.one 0.05 2882Socket -UY Radiotron socket complete withinsulator- 5 used MFD., one 0.1 MFD. and one 1.0

11、 MFD. capacitors in metal container 2957Condenser -10 MFD Electrolytic condenser with 7239Transformer-Audio transformer assembly mounting nut and washers 7241Capacitor -3 gang tuning condenser 2963Resistor -8,000 Ohms-Carbon type-Package of 5. 7299Capacitor -745 MMFD 2968Socket -UX Radiotron socket

12、complete with insulator - 3 used 7336Transformer -1st intermediate transformer 2970Resistor -500,000 Ohms-Carbontype-Package 7337Transformer -2d intermediate transformer of 5 7338Board-Resistor board complete less resistors and 2973Board-Magnetic pickup terminal board-Package coil of 2 7339Switch-Ro

13、tary BandSelectorswitch-Complete 2994Coil -2d detector R.F. choke coil with mounting nut and wehers 8680Transformer-Powertransformer -105-125 volt.- 2997Coil-R.F. coil 25-40 cycles 2999Shaft assembly-Dial scale drive shaft 8768Coil capacitor and switch-Complete with mounting 3000Dial-Dial drum and s

14、cale complete nuts and escutcheon 3003Cushions-Receiverchassismountingcushions- Package of 4 8769Transformer-Powertransformer -100-230-40-60 cycles 3006Capacitor -1000 MMFDREPRODUCER 3056 Shield-Radiotron shield -3 used-Package of 28559Ring-Cone retaining ring-. 3057Condenser -4 MFD. Electrolyticcon

15、denserwith8601 Cone-Reproducer paper cone-Package of 5 mounting nuts and washers 8639Coil-Reproducerfieldcoil ssembly -Comprising 3058Resistor -100,000 Ohms-Carbon type-Package of 5field coil, magnet and cone housing 3060Resistor -40,000 Ohms-Carbon type-Package of 5. CABINET 3061Switch-Toggle type-

16、Operating switch with mount- ing nut 3005Screw assembly-Reproducing mounting screws, nut and washers-Package of 1 eet of 4 each 3081Resistor -16,000 Ohms-Carbon type-Package of 1. 3229Escutcheon-Station selector escutcheon-Complete 3085Capacitor -400 MMFDwith mounting screws 3225Lever-Switch lever-Package of 2 7242Baffle board and grill cloth 3226Coil-Oscillator and 1st detector loading coil .9391Cabinet-Cabinet complete less equipment 收音机爱 好者资料库 RadioFans.CN 收音机爱 好者资料库 RadioFans.CN