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1、PAGE 480-B MODEL M123 Six -Tube, Superheterodyne soor4 KC AutomobileReceiver Electrical Specifications Type and Number of Radiotrons Used -2 RCA -6D6, 1 RCA -6A7, 1 RCA -75, 1 RCA -41, 1 RCA -79 -Total, 6 Battery Current (6.3 Volt Battery) . Speaker Field (Cold)1 35 Amperes Tubes2 2 Amperes Dial Lam
2、p0.15 Ampere Power Supply (No Signal)2 8 Amperes Total (No Signal)6.5 Amperes Total (Maximum Output)8.0 Amperes (Average) Tuning Frequency Range540 K. C.-1600 K. C. Maximum Undistorted Output4 2 Watts Maximum Output6 8 Watts Osc. .40DET. R.F. 76v 192v 3.6v LE 5.31AA,Q57. 192v1 192v DET-OSC5.9v V.) 3
3、.9v 7.5MA 165v (-.)5.9v 2vDD 1.25v 0.46MA 235vKM)5.9v G 1Zv4.5mA All voltages except heater are to ground. Voltages at Individual Socket Contacts II p kx0:,/4O O O -Location of Line-up Capacitors Alignment Procedure STEP CONNECT Him SIDE OF TEST OSC. TO - TUNE TEST OSC TO - TURN RADIO DIAL TO ADJUST
4、 IRE FOLLOWING FOR MAX. OUTPUT 1 I -F Grid in series with 0.01 mfd. 175 Kc Quiet point near 800 Kc P of 2nd I -F Trans. 2 1st Det. Grid In series with 0.01mfd P&S of 1st I -F Trans. 3 Antenna In series with 200 mmfd. 1400 He1400 Re Osc., Det., & R -F Trimmers on gang condenser 4800 Re 800 He 600 Re
5、Osc. Trimmers Rock Gang 5 Repeat Step 3 6 With auto antenna connected to receiver adjust R -F Trimmer format. volume on weak station near 1400 Kc. 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 C2C-3 CC-7C.13013 C -T5 /21405 84/150. 040 1101f0. 0-.
6、5 44f0 0.40 41411-0 !0 x130 4,2420 010 1000 O5-170 WOO RI MARL. (4, R-1 210,000 4WD. HOT 3/0- SICTiOt4 0D 1 05C 4A7 1 is Is FC, O lc c 0 INF 0 :d6 C00F 0 _L? / R-3 Do ow -o ao PAIFD o 011 8-405 04100 57L0 5537.1 C-14 05-170 1134f 0 C-16 C-11 C 23 10-70 4441i0. .01 4,D. 27 AMP. 4D 1L310 Ar ( TOTAL, R
7、4 30.0 TO HLAIIRS TEllrom_777, DAL 1.7,17 4 7 N C-37 C-30C Si 5 200Or 5300 NIFD 112,V D.Mf0AINIFI). 4 - VIBRATOR T1) w /7 C,Y.,-C- r Og37,37 250- MFG, I = 173 CI C 55 = 43=2. m.0 14.4 1,4 11 -RED I BROWN - 370.A. BLACKS BROWN- -BLACKRED a BUKK- INTERNAL CONNECTIONS OF VIBRATOR POWER TRANSFORMER C17
8、LIA R 9 -11- 200,000 ti 22475. 0(130 C-2 300 PAW 50c C ZS 10 j- no N310(7 41 500000 T2 =i 4=3 4:=3, C 35C-21 C311 02 070 1 07. ,:/a 3 /013,7,1 T ,c) C 24 02 400007 4:=.3 43:Z. 4=. , 11II _ c, ja I V:I C-34 025 MID -Schematic Circuit Diagram RED C -37t ZOO MAUR GREEN BLUE YELLOW BROWN L14 GREEN C-30
9、.5 PAID, INTERNAL CONNECTIONS OF FILTER PACK 4.0 REDBLUE 95 YELLOWPUffnal - tg GREEN- I.F. TRANSF. 40 c o.0 9 1 ,I.F.TRANSF. -RED -RED -BLACK 60(e. - RED 73 0 oe lu CASE CAP. PACK BLACK- 034 BLACK- OUTPUT TRANSF. DRIVER TRANSF. (A) 收音机爱 好者资料库 RadioFans.CN PAGE 482-B M123 Insist on REPLACEMENT PARTS
10、genuine factory tested parts, which are readily identified and may be purchasedfrom authorized dealers Stock No. DESCRIPTION ListStock No. DESCRIPTION List RECEIVER ASSEMBLIES 4239Resistor - 3,000 ohms - Carbon type -3 watts (R10) 4237Cable-Single-conductor shielded cable with female section of conn
11、ector-From volume 6972 Rheostat-Noise suppressor rheostat (R2) control switch to pilot lamp cable 3584 Ring-Retaining ring for antenna, radio fre- 4238Cable-Two-conductor power cable from Si quency or oscillator coils-Package of 5. to power lead connector 3993Screw-No. 6 -32-g -inch square head set
12、4244 Cap-Contact cap-Package of 5 screw-For mounting condenser drive as - 3861 Capacitor-Adjustable capacitor (C12) 3623 sembly co shaft-Package of 10 Shield-Antenna, radio frequency or oscillator 4246Capacitor -80 mmfd. (C9)coil shield 4248Capacitor -300 mmfd. (C21) 4233 Shield-Oscillator or second
13、 detector Radio - 4245 Capacitor -890 mmfd. (C13) Eton shield 4247 Capacitor -2,400 mmfd. (C28) 4235Shield - Intermediatefrequency Radiotron shield 3702 Capacitor -0.25 mfd. (C8) 3639 Capacitor-.02 mfd. (C16, C25, C26) 4236 4232 Shield-Radio frequency Radiotron shield. Socket -6 -contact Radiotron s
14、ocket 3701 Capacitor-.01 mfd.(C20, C23) 3641 3877 Capacitor -0.1 mid. (C27) Capacitor -0.1 mfd. capacitor (C4, C18) 3572 6971 Socket -7 -contact Radiotron socket Tone control (R16) 3597 Capacitor -0.25 mfd. (C17) 6969Transformer-Audio driver transformer (T2). 4243 Capacitor pack-Comprising two 0.05
15、mfd. 6970Transformer-Audio output transformer (T3). capacitors (Cl, CS) 6960Transformer - Firstintermediate frequency 6963 Capacitor pack-Comprising one 10. and one transformer (L7, L8, C14, C15) 5. mfd. capacitors (C22, C24) 6962Transformer-Second intermediate frequency 6965 Coil-Antenna coil (L1,
16、L2) transformer (L9, LIO, L18, C19) 6967 Coil-Oscillator coil (L5, L6) 6964Volume control (R9, SI) 6966 Coil-R. F.,.coil (L3, L4) 6961Condenser -3 -gang variable tuning condenser CONTROL BOX ASSEMBLIES (C2, C3, C6, C7, C10, C11) 6974Box-Control box complete 6973 Drive assembly-Variable tuning conden
17、ser drive assembly 6976Back-Control box back 6975Cover-Control box front cover 4249 Drive bracket and worm assembly-For vari- able tuning condenser drive 4259Cover-Station selector dial cover-Trans- 6968 Reactor (L13) parent celluloid-Package of 5 4240 Resistor -700 ohms-Carbon type-N watt 4261Dial-
18、Station selector dial (R5)-Package of 5 4258Key-Volume control key 4242 Resistor - 3,000 ohms - Carbon type - 3,4 4340Lamp-Dial lamp-Package of 5 watt (R12)-Package of 5 4260Pointer-Station selector indicator 3602 Resistor - 60,000 ohms - Carbon type - watt (R3)-Package of 5 4257Ring-Station selecto
19、r dial cover ring 3118Resistor -100,000 ohms-Carbon type-us 4262Screen-Dial light screen-Package of 5 watt (R8)-Package of 5 4252Screw-No. 10 -32 -11/32 -inch fillister head 3116 Resistor -200,000 ohms-Carbon type-nt watt (R13)-Package of 5 set screw for holding condenser drive and pinion gear and v
20、olume coupling control shaft-Package of 10 3744 Resistor -250,000 ohms-Carbon type-h watt (R1)-Package of 5 3652 Screw-No. 10-32- h -inch cupped point set screw for holding statiottselector or volume 6186 Resistor -500,000 ohms-Carbon type-% watt (R14)-Package of 5 control flexible drive shaft co co
21、ntrol box- Package of 10 4241Resistor -1.5 megohms-Carbon type-h watt (R6, R7)-Package of 5 4255Screw-No. 4 -40-h -inch oval head ma - chine screw for holding control box cover - 6242Resistor -2 megohms - Carbon type -h Package of 10 watt (R11)-Package of 54254 Shaft-Volume control coupling shaft 30
22、47Resistor -1,500ohms-Carbon type -3, watt (R15)-Package of 5 4250Shaft and gear-Station selector pointer shaft and gear 2240Resistor - 30,000 ohms - Carbon type - 1 watt (R4) 4251Shaft and gear-Station selector drive shaft and pinion gear 收音机爱 好者资料库 RadioFans.CN PAGE 483-B M123 REPLACEMENT PARTS-(C
23、ontinued) Insist on genuine factory tested parts, which are readily identified andmay be purchased from authorized dealers Stock No. DESCRIPTION ListStock No. DESCRIPTION List 4253Spring-Volume control key holding spring- Package of 10 42, 0Cover-Tuning condenser drive bracket and worm assembly cove
24、r 3690Strap and bracket assembly-For mounting control box to steering column-Compris- 7755Housing-Front sectionof housing corn - plete-Less hinge pin ing one bracket, two screws, one lock- washer and one strap 7756 Housing-Rear section of housing complete- Less hinge pin FLEXIBLE SHAFT AND 4267 Nut-
25、Wing nut-Package of 10 CABLE ASSEMBLIES 4266 Pin-Hinge pin-Package of 5 7762Cable-Dial lamp cable with socket and sec- 4268 Screw-Wing screw-Package of 10 tion of connector 4269 Screw-No. 6 self -tapping screw for fastening 4264Clamp-Metal clamp-Package of 10front and bottom sections of housing - 42
26、95 Screw-No. 10 -32-X-inch cupped point set Package of 10 screw-Fastens flexibleshaft housing to shaft bushing-Package of 10 4271Screw-Self-tapping No. 6 screw for fastening tuning condenser drive bracket and worm 7760Shaft-Station selector flexible drive shaft- cover to housing-Package of 10 Approx
27、imately 29 inches long 4295 Screw-No. 10 -32 -X -inch headless set screw -Located in worm gear cover and bracket 7764Shaft-Station selector flexible drive shaft- used to fasten drive shafts-Package of 10. Approximately 24 inches long 7761Shaft-Volume control flexible shaft-Ap- proximately 311 z inch
28、es long MISCELLANEOUS ASSEMBLIES 7763Shaft-Volume control flexible drive shaft- 4287Body-Antenna connector body-Package of Approximately 27 inches long 10 4265Sleeve-Coupling sleeve for volume control shaft -Package of 5 4289Body -Fuse connector body-Package of 10. 4283Cable - Antenna lead-in cable
29、- Approxi- 4263Socket-Dial lamp socket. mately 35 inches long REPRODUCER ASSEMBLIES 4288Cap-Antenna or fuse connector cap-Pack- age of 10 9493Coil-Field coil magnet and cone support 4293Capacitor-Ammeter capacitor -0.5 mfd (L12) 4292Capacitor -Generator capacitor -0.5 mfd. 9492Cone-Reproducer cone (
30、1.11) -Package of 5. 4291Clip-A supply clip -Package of 10 9491Reproducer complete 777Escutcheon.-Grille escutcheon and name plate. VIBRATOR ASSEMBLIES 4286Ferrule-Antenna or fuse connector ferrule and bushing-Package of 10 4280Board-Terminal board-Located onfilter pack 3646Fuse -20 ampere-Package o
31、f 5 4013Capacitor -200 mmfd. (C31) 7765 Grille -Baffle board and grille cloth 4290Insulator-Fuse connector insulator-Package 4274Capacitor-.025 mfd. (C34) of 10 4273Capacitor -0.5 mfd. (C29) 4132Knob-Noise suppressor or tone control knob 4275Coil-Choke coil (L16)-Package of 5 7758Filter pack-Compris
32、ing onereactor,one4282Knob-Station selector knob-Package of 5 choke coil, two 8. mid. capacitors, one 0.5 and one 200 mmfd. capacitors (C30, C35, C36, C37, L14, L17) 4691LacquerTouch-up lacquer (1 pint of lacquer and 1pint of thinner) 7766Lead-Power lead with female section of fuse 4276Plug -2 -pron
33、g plug .connector -From power cable to battery. 4308Screw-Binder head No. 6-32 -!/-inch screw 4284Spring-Antenna or fuse connector spring- -Fastens shieldCOcover -Package of 10 Package of 10 4278Socket-Vibrator mounting socket. 6152Suppressor -Distributor suppressor 7759Transformer-Vibrator transfor
34、mer (T1 ). . 6151Suppressor-Spark-plug suppressor 7757Vibrator assembly complete (R17, C32, C33, L15) 4277Screw-No. 8 -32 -n -inch binder head screw used to mount escutcheon-Package of 10. HOUSING ASSEMBLIES 4294Screw -No. 10 -32 -5/16 -inch hexagon head screw -Used to mount chassis to housing- 4272Bracket-VolumePackagecontrolshaltbracket- of 10 For left-hand mounting located on front of receiver housing 4285WasherAntenna or fuse connector insulating washerPackage of 1(1
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