RCA-Victor-Co-Inc-4X 电路原理图.pdf
MANUAL OF MOST-OFTEN-NEEDED RADIO DIAGRAMS i. 4 GO SERVICE HINTS (1) Excessive hum or distor tion is sometime* caused by pilot lamp socket short-circuiting to chassis. 25Z5 43 6F7 6A7 JUUU1 ca mps ca,MC T-70472-* RCA Models: 4X, 4X3, 4X4 Schematic Circuit Diagram Chassis Wiring Diagram, Radiotron, Coil, and Trimmer Locations COMPILED BY M. N. BEITMAN, SUPREME PUBLICATIONS 收音机爱 好者资料库 RadioFans.CN PAGE i i-B AC -DC, Superheterodyne MODELS 4X, 4X3, and 4X4 101C.ir Sc ;RIM 1100C ANT 1.0 C MODEL 4X FREQUENCY RANGE Standard Broadcast (A)540.1,720 kc Intermediate Frequency RADIOTRON COMPLEMENT (1) RCA -6A7 First Detector-Oscillator (2) RCA -6F7I. F. and Second Detector Power Supply Rating (105.125 volts) POWER OUTPUT Undistorted 0 3 watts A.C., 0.25 watts D.C. Maximum.0 8 watts A.C., 0.6 watts D.C. Pilot Lamp 00c161-. son. POWER Su PRY SI Cs 560 0 601 L.3 4, VV C6 MINKMLMR irmnT44%. CH A SIS GROUND C19 1:611f5 IIIcoUDL.I,2 000 cro O LII I MEAT 16 kW 11. R 590.41 .03 MID. RIO 47.000.5 MODEL 4X3 ALIGNMENT FREQUENCIES Standard Broadcast (A). C9 Ist.DET. 05C. isommr, C7:11.003. L5 t 470.000nP g /sec, La L-EO.OSIfOIp611 1900L4TOTAL 56 0113 10 6104F C14 .09 41111MMINNIO MODEL 4X4 .1,500 kc (osc. and ant.) 460 kc (3) RCA -43.Power Output (4) RCA -25Z5.Half -wave Rectifier 50.60 cycles -55 watts, D.C.-50 watts LOUDSPEAKER Type.Electrodynamic Impedance (v.c.) M80864-1, 4.5 ohms / at 400 cycles 1M80864-2, 3.0 ohms Mazda No. 40, 6.3 volts, 0.15 ampere U. int DU. in TQ MI Re 470,000. OUTPUT 43 cn CI IIPR R9 470,000. ON SI SHAFT ig R14 R 3 IRS. 40.e. 456n. .05 2525436F76A7 - T.101,2- -Schematic Circuit Diagram. SERVICE HINTS (1) Excessive hum or distor- tion is sometimes caused bypilotlampsocket short.cirruiting to chassis. RCA VICTOR DIVISION OF RADIO CORPORATION OFAMERICA, CAMDEN N. J., U. S. A 收音机爱 好者资料库 RadioFans.CN PAGE 2-B 4X,4X3 CAP. PACK CONNECTIONS CONNECTIONS SPEAKER CONNECTIONS putral,a7. BIT.COIL tt ICONNECTIONS sew.s ,se leyees. .1 收音机爱 好者资料库 RadioFans.CN PAGE I.3-B REPLACEMENT PARTS 4X,4X38.4X4 nsist on genuine factory tested parts, which are readily identified and may be purchasedhorn authorized dealers. STocxNo. STOC NORDESCRIPTION DESCRIPTION RECEIVER ASSEMBLIES 12218Shield-Radiotronshield 12118Cap-Grid contact cap-Package of 5. 12607Shield-Shield top for Stock No. 12839 12405Capacitor -47 Mmfd. (C16) 12007Spring-Retaining spring of core Stock 12629Capacitor -56 Mmfd. (C13) No. 12006-Package of 10 12404Capacitor -120 Mmfd. (C12) 4786Socket -6 -contact 43 or 25Z5 radiotron 12724Capacitor -120 Mmfd. (C9) socket 12537Capacitor -560 Mmfd. (C1, C5) 4787Socket -7 -contact 6A7 or 6F7 radiotron 12536Capacitor -820 Mmfd. (C15) socket 5107Capacitor-.0025 Mfd. (C2) 12846Socket-Dial lamp socket 4858.Capacitor-.01 Mfd. (C17, C18) 12839Transformer-First I.F. transformer corn - 4836Capacitor-.05Mfd.(C10,C11,C14, plete (L6, L7, C12, C13, R6, R10). C22, C24) 12840Transformer - Second I.F.transformer 4886Capacitor-.05 Mfd. (C19) complete (L8: L9, C16, R13) 4840Capacitor -0.25 Mfd. (C23) 12497Trap-Wave trap(L1) 12484Capacitor -0.25 Mfd. (C6) 12836Volume Control and power switch (R4, 12844Capacitor-Packcomprising2sections each 16 Mfd. (C20, C21) S1) REPRODUCER ASSEMBLIES 12837Coil-Antenna coil (L2, L3) (M80864.1) 12838Coil-Oscillator coil (L4, L5) 12842Condenser -2 -gangvariable tuningcon- 12499Coil-Field coil (L12) denser (C3, C4, C7, C8) 12731Coil-Neutralizing coil (L11) 12847Cord-Power cord,153 ohm resistance 12498Cone-Reproducerconeand dustcap (R14) (L10) 12006Core-Adjustable core and stud for Stock 9684Reproducer Complete No. 12497, 12839 and 12840 12500Transformer-Output transformer (T1 ) . 4340Lamp-Dial lamp, 6.3 volt-Package of 5 REPRODUCER ASSEMBLIES 12409Lead-Antenna lead approximately 20 feet long (M80864-2) 12843Reactor-Iron core reactor (L13) 13149Coil-Reproducer fieldandneutralizing 12848Resistor -47 ohm-insulated-1/4 watt- coil (L11, L12) Package of 5 (R11) 13148Cone-Reproducer cone complete (L10) 12841Resistor -390 ohm-carbontype -1/10 9750Reproducer-Speaker complete watt-Package of5 (RIO) 13151Transformer-Output transformer (T1). 12265Resistor -10,000 ohm - insulated -1/4 watt-Package of 5 (R5, R7) MISCELLANEOUS ASSEMBLIES 12412Resistor -47,000 ohm-insulated-1/4 watt 12834 Dial-Station selector dial scale (4X and -Package of 5 (R12) 4X3) 12696Resistor -68,000 ohm-insulated-1/4 watt 12935Dial-Station selector dial scale (Used on -Package of 5 (R2) 4X4 only) 11297Resistor -330,000ohm-carbontype- 12833Knob-Station selector knob-Package of 1/10 watt-Package of 5 (R6) 5 (4X and 4X3) 11452Resistor -470,000 ohm-carbontype- 12934Knob-Station selector knob-Package of 1/10 watt-Package of 5 (R1) 5(4X4 only) 12285Resistor -470,000 ohm - insulated -1/4 watt-Package of 5 (R8, R9) 12933Knob-Volume control knob-Package of 5(4X4 only) 12013Resistor -1 meg-carbon type -1/10 watt /2673Knob-Volume control knob-Package of -Package of 5 (R13). 5 (4X and 4X3) 12845Resistor-Wire wound 40 ohms (R3). 12835Screw-Chassis mountingscrewand 12008Shield-I.F. transformer shield for Stock washers-Package of 10 No. 12839 4119Screw-Set screw for knob Stock No. 12408Shield-I.F. transformer shield for Stock No. 12840 12673, 12833, 12933 and 12934-Pack- age of 20
