RCA-Victor-Co-Inc-86T4 电路原理图.pdf

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1、PAGE 354-3 MODELS 86T4 and 86T44 Six -Tube, Three -Band, A -C, Superheterodyne Receivers Model 86T4 Electrical Specifications Model 86T44 FREQUENCY OR WAVE -LENGTH RANGESR -F ALIGNMENT FREQUENCIES Long Wave (X). 145.350 kc (approx. 2,068.857 meters)Short Wave (C)20,000 kc (osc., det.) Mediuili Wave

2、(A) .525-1,550 kc (approx. 571.193 meters)Medium Wave (A).600 kc (osc.), 1,500 kc (osc., det., ant.) Short Wave (C)5.8-22 megacyclesLong Wave (X) .175 kc (osc.), 350 kc (osc., det., ant.) Intermediate Frequency RADIOTRON COMPLEMENT (1) RCA -6A7First Detector-Oscillator (2) RCA -6D6Intermediate Ampli

3、fier (3) RCA -75Second Detector, A -F Amp. and A.V.C. 460 kc (4) RCA -42Audio Power Amplifier (5) RCA -80Full -Wave Rectifier (6) RCA -6G5Magic Eye Tuning Tube Pilot Lamps (2)Mazda No. 46, 6.3volts, 0.25 ampere POWER SUPPLY RATINGS Rating A Rating B Rating C POWER OUTPUT RATING Undistorted2.5 watts

4、Maximum4.5 watts -COSC. C23 2.0000 K.C.- C DET. CIA-. ., , TUNING TUBE* 1) T -/, 20,000 K.C. SUMO OUTPUT Wtix 911, 5/ RECTIFIER/ WAVE TRAP 460K C.u OSC. co. L /WANT. C4A OSC. 1.10 MOO R.C. GOO K.C. /A 05C. C25 / DET. C13 /I600 K c./ / ISO( K.C. R.F. CDR Ayx ,/ OSCCOIL A SeC 2.DET Au0.0,5 A OSC LII 1

5、TOR REAR OF CMASSISC DET. CIS 115 K.C. 350 K.C. X- Aril% C6 OSC. C29 390 K.C. 350K. C. LI6 elSOKi I14 60M .0 -Radiotron, Coil, and Trimmer Locations 105.125volts,50.60cycles,75watts 105.125volts,25.60cycles,75watts 100.130/140-160/195-250volts,40.60cycles,75watts LOUDSPEAKER TypeElectrodynamic (RL-6

6、3F-1) 2.2-1 V.C. Impedance. (84091-1)2.6-ohms at 400 cycles (84091.2)4.7- Precautionary Lead Dress.-Keep the following leads as short as possible:(1) Bus lead from C16 to S2,(2) bus lead from L8 to S2, (3) leads from C24 to L8 and to chassis. (4) Bus lead from L5 to S2 should be 21/2 inches long be-

7、 tween lugs and dressed away from S2, (5) bus lead from C17 toS2 should be dressed away from adjacent parts, (6) leads should be dressed away from grid lug of 42 tube, (7) C11 lead to L5 should be 1 inch long and dressed be- tween .L5 and C4, C11 leadto ground should be short, (8)gken lead between o

8、pposite lugs on S2 should be dressed away from S2,(9) excess antenna lead should be dressed above chassis, (10) blue lead from LI to 6A7 oscil- lator plate lug should be dressed down and away from L8 lug and away from oscillator grid of 6A7, (11) green lead from L6 to S2 should be dressed away from

9、bus connected between C17 and S2, (12) red lead from L6 tap to S2 should be dressed away from bus connected between C17 and S2. When necessary to replace bus leads, use only wire hav- ing same diameter as original. RCA VICTOR DIVISION OF RADIO CORPORATION OF AMERICA, CAMDEN N. J., U. S. A. 收音机爱 好者资料

10、库 RadioFans.CN 6 LI 1000 MIME - C IO200 MMF RI C4C5 2-2011-490 MMEMME C DIRECTION OF ROTATION DET. 05C. 687 L LI4 Lao. (,L6 13 C1216 3.3A -Q )O2S MN1F.-11-490 05 MF MOVABLE SEGMENT ROTOR 0 A., ) - 2-20 4:CR MME C Re 56042 C14C15 IR2-20 MMEMMF- 2 3 no.000n C19 82MMF CI7 1-490 Jr, MIYIE t ELOCF04. .e.

11、6 C2IC22 120- .4 0.161E0. LE 606 39080 T-BMME L7LB 4.05A A L9 it 2.I ZMGe,ENSDELF;r8CL.5egreP4E KNOB COUNTERCLOCKWISE FORLir ANDX BANDS. RED BLACK , POWER SWITCH MOUNTED ON 3-4 SMAFT) GREEN GREEN TO FILES. 4DIFIL LAMPS RECT. BO L12 FIELD 12901 C 704MBED. 120 MIME 893 BE 000.n. 2 35 0.161ED RIO C3422

12、MEC WID. C28., C22290 A MEW PAME- C31_10301 4_ I1 220 005 F. MED, R 100004 Rea 100004 Taro. 0.25 MED. C33 L15 86.11. R12 58.000 CLOSED POE 86010 1_13 TjTERM?.13RD. L162 p84 C37 20 MM o C 1F.- 38 Tea MME. C42 70IMFD. 33MMF.-1 C39 R13 220 1514 040 R23 2.26180. 1.007 MF-D. T 815 100, 50 .25 FC 11,4E -G

13、. R25 180001 VOL. CONTR. RIB 2MEG. TOTAL AUDIO 2. DET. RVC .01OUTPUT 75MED.42 0441 5000004 SECTION .);?). Tc.4, TUNING G5G5 3 C41 1207RIB MMFI390.000 BIT 270000e 0.5 NIFD. C451 RI9 08,0004 C 47 015 MED. TONE CONTROL .14/T220PEN FOR TREBLE / CLOSE FOR BASS LIB S40 R20821 2 ANY 104274 IC49 221 -Schema

14、tic Circuit Diagram Y-70791-0 O SPEAKERRESISTANCE TABLE TYPEL-121L17T2-PRI.T2-321. 01-63 F -I1.80.13760.26 84091-I2.40.165200.37 84091-24.50.227000.50 NUM NEUT. COIL. 收音机爱 好者资料库 RadioFans.CN PAGE 356-B 86T486T44 CATI1ODE CU1RENT3 (I) RCA -44712 4 MA. (/) RCA -606101914 (3) RC 3-76 0.22MA (4) 5(6-423

15、9 MA (5) RCA -60 64 MA. (4) 444-4142404. 6C4r4TgtrA t ROD Fel 822 I05C C0114 L-I6v. 6,Jr -4.JyL-4. X -1.35v._ OSC. COI L RES. ASSEMBLY Ait -350v.-c48 EL. CAP 350v -A.o. -FTiay.-A.c -350V.-A.C. REC T 80 (-16 V.*) - 235v. - OUTPUT 42 A.C. 5v. A.C. DET. COIL ANT. COIL TONE CONTROL liPOWER SW. A.O. 245

16、V. t(112v.)_j 100v. ?Ain/. C49 EL. CAR (-3.12V.*) - OAV. IC.G.1,-1 L 1St DET., 4OSC.L (-22.405- 6A7 (-7 V.) BLACK- BROWN TR BLACK (.r11 TUNINGUBE NOV.-. CABLE 2.DET,A.FLr- -. DELCO 1 L BLACK-OREENIR, A.V. C. Oy. BLACK- RED TR ,75 -r-, C.G. ), 6.3v. v A.c. 1sT.I.F. TRANS. (-0.351.) -0.4 V 29.F. TRANS

17、. C.G._ L_ 460 K.c PRI. ADJ. A.G.-Ce I.F. 6 D6 (100V.) 94V ADJ. TERM. BRD VOLUME CONTROL BOTTOM FRONT OF CHASSIS (-1.35V.*)L_ _(125V.*) -0.5v. 0-70096- i Figure 2-Radiotron Socket Voltages, Coil, and Trimmer Locations Measured at 113volts, 60 -cycle supply-Tuned to approximately 1,000 kc or 300 mete

18、rs A band- Nu signal being received-Volume control minimum Note: Two voltage values are shown for some read- ings. The value shown in parentheses with asterisk () indicates operating conditions without voltmeter loading. *IT COIL CONNECTIONS A. 8:X (Cilg reggIMORWSigrekT 0 WE UNRSIILICANST. CONNECTI

19、ONS 03C. COI L CONNECTIONS IK O ROWN- NUE OW ill S IAM V, TUNING CABLE CONNECTIONS,agA SPEAKER CONNECTIONS TRANSE. CONNECTIONS BROWN CBS-I.F. TRAMP CONNECTIONS Alignment Procedure Calibrate the tuning dial by adjusting main dial pointer to the low -frequency (end) calibration mark on dial with the g

20、ang tuning -condenser plates in full -mesh position; then adjust the small (vernier) pointer to figure 0.These are fric- tion adjustments. STEP CONNECT HIGH SIDE OF TEST OSC. TO - TUNE TEST OSC TO - TURN RADIO DIAL TO ADJUST ME FOLLOWING FOR MAX. OUTPUT 1 I -F Grid in series with 0.01 mfd 480 Kc Qui

21、et point near 600KC Band L16L15 2nd I -F Trans. 2 1st Det. Grid in series with 0.01 mfd L14L13 lst I -F Trans. 3 Antenna in series with 200Ilinfcl LiWave Trap Minimum Output 4 Antenna in series with 300 ohms 20 KC 20 Mc C Band C23ACl2t Osc.Det. 5 Antenna in series with 200 mmfd 1500 Kc 1500 Kc A Ban

22、d C25C13C4 Osc.Det.Ant. 6603 Kc 800 Kc A Band L10 L -F Osc. Rock Gang 7Repeat Step 5 8 350Kc 350 Kc X Band C29C15C8 Osc.Det.Ant. 9 175Ke 175 Kc X Band LiiL -F Osc. RockGang 10Repeat Step 8 Use minimum capacity peak. t !Ise maximum capacity peak - ROUX GANT 收音机爱 好者资料库 RadioFans.CN PAGE 3 57-B 86T4 &

23、86T44 REPLACEMENT PARTS Insist on genuine factory tested parts, which are readily identified and may be purchased from authorized dealers. STOCK No. DESCRIPTION STOCK No. DESCRIPTION RECEIVER ASSEMBLIES13594Resistor -15,000 Ohms -Carbon type, 1/10 watt (R1) 3219Resistor -18,000 Ohms -Carbon type, wa

24、tt (R5) 14542Arm -Band indicator operating arm and hub -less set 14078Resistor -18,000 Ohms -Carbon type, 1 watt (R25) screw, Stock No. 14350 13735Resistor -33,000 Ohms -Carbon type, i watt (R14) 12038Band -Rubber band for tuning tube 13206Resistor -39,000 Ohms -Carbon type, 2 watt (R8) 14388Belt -V

25、ariable condenser drive belt 5029Resistor -56,000 Ohms -Carbon type,i.watt (R4) 13216Board -Antenna and ground terminal board 11282Resistor -56,000 Ohms -Carbon type, 1/10 watt (R12) 12717Board -Phonograph terminal board 12333Resistor -68,000 Ohms -Carbon type, * watt (R19) 14338Bushing -Variable co

26、ndenser mounting bush.ng and screw 8064Resistor -82,000 Ohms -Carbon type, watt (R9) assembly 5145Resistor -100,000 Ohms -Carbon type, 4. watt (R3, R15) 14394Cable -Tuning tube cable and socket 11398Resistor -220,000 Ohms -Carbon type, 1/10 watt (R13) 12607Cap -First I.F. transformer sh_eld top 1219

27、9Resistor -270,000 Ohms -Insulated, i watt (R17) 12581Cap -Second I.F. transformer shield top 13479Resistor -390,000 Ohms -Carbon type,i watt (R18) 12118Cap -Grid contact cap 12013Resistor -1 Megohm-Carbon type, 1/10 watt (R24) 12884Capacitor -Adjustable trimmer(long)(C4,C6,C13, 12679Resistor -2.2 M

28、egohm-Insulated, i watt (R10, R23) C15, C25, C29) 13601Resistor -10 Megohm-Insulated,i.watt (R11) 12714Capacitor -Adjustable trimmer (medium) (C12) 12004Resistor -Voltage divider -Comprising one 216 ohm, one 12807Capacitor -Adjustable trimmer (short) (C23) 27 ohm and une 22 ohm sections (R20, R21, R

29、22) 12722Capacitor -18 Minfd. (C10, CI4. C26) 14350Screw -No. 8-32 x 3. 16 square head set screw for gear, 13605Capacitor -27 Mmfd. (C7) Stock No. 14365, and drum, Stock No. 14345, and 12948Capacitor -33 Mmfd. (C39) arm, Stock No. 14542 12813Capacitor -82 Mmfd. (C19) 12710Shield -Coil shield for Sto

30、ck Nos. 13587 and 13588 13604Capacitor -115 Mmfd. (C28) 12799Shield -Coil shield for Stock No. 12798 12404Capacitor -120 Mmfd. (C21, C22, C36, C37) 12883Shield -Coil shield for Stock No. 13590 .12724Capacitor -120 Mmfd. (C43) 12008Shield-I.F. transformer shield 12406Capacitor -180 Mmfd. (C38) 12798S

31、hield -Oscillator coil and shield -A and C bands 13602Capacitor -220 Mmfd. (C30) (L7, L8, L9, L10) 13603Capacitor -470 Mmfd. (C27) 3682Shield -6A7, or 75 Radiotron shield 13593Capacitor -1,000 Mmfd. (C2, C3) 4233Shield -6D6 Radiotron shield 12811Capacitor -3,600 Mmfd. (C18, C24) 11383Shield -42 Radi

32、otron shield 4838Capacitor -.005 Mfd. (C31, C46) 14114Socket -Dial lamp socket 5148Capacitor -.007 Mfd. (C40) 4794Socket-4-cOntact 80 Radiotron socket 13138Capacitor -.01 Mfd. (C42, C44) 4786Socket -6 -contact 42, 75 or 6D6 Radiotron socket 11315Capacitor -.015 Mfd. (C47) 4787Socket -7 -contact 6A7

33、Radiotron socket 13606Capacitor -.025 Mfd. (C9) 12007Spring -Retaining springforcore,Stock Nos.12006, 4870Capacitor -.025 Mfd. (C50) 12664 and 12882 4888Capacitor -.05 Mfd.(cii) 12907Spring -Tension spring for indicator drivegear,Stock 13607Capacitor -.05 Mfd. (C8) No. 14365 4839Capacitor -0.1 Mfd.

34、(C20, C34, C35) 14342Spring -Tension spring for idler, Stock No. 14341 12484Capacitor -0.25 Mfd. (C33, C41) 14537Switch -Range switch (S1, S2) 12741Capacitor -0.5 Mfd. (C45) 14538Switch -Tone and power switch (S3, S4) 11203Capacitor -10 Mfd. (C48) 12652Transformer -FirstI.F.transformer(LI3,L14, C21,

35、 5212Capacitor -16 Mfd. (C49) C22) 14377Capacitor -16 Mfd. (C32) 12653Transformer -Second I.F. transformer (L15, L16, C36, 13587Coil -Antenna coil and shield -X and A bands (L2, C37, C38, R12, R13) L3) 13392Transformer -Power transformer -105-125 volts,50-60 13589Coil -Antenna coil -C band only (L4,

36、 L5) cycles (T1) 13590Coil -Oscillator coil and shield -X band only (L11) 13566Transformer -Power transformer -105-125 volts,25-60 12798Coil -Oscillator coiland shield - A and C bands cycles (T1) (L7, L8, L9, L10) 12646Transformer -Power transformer -100-130/140-160/195- 13588Coil-R.F. coil and shie

37、ld -X and A bands (L6) 250 volts, 50-60 cycles (T1) 14539Condenser -3 -gang variable tuning condenser (C5, C16, 13592Trap -Wave trap (L1) C17) 14335Volume Control (R16) 5119Connector -3 -contactfemaleconnectorforreproducer cable 14379Washer -Felt washer for indicator pointer 12800Core -Adjustable co

38、re and stud assembly for Stock No. 12798 REPRODUCER ASSEMBLIES 12882Core -Adjustable core and stud for Stock No. 13590Model 86T4 (Speaker No. RL-63F-1) 12006Core -Adjustable core and stud forStock Nos. 12652 14356Board -3 -contact reproducer terminal board and 12653 13866Cap -Cone center dust cap 12

39、664Core -Adjustable core and stud for Stock No. 13592 12012Coil -Field coil (L12) 14541Dial -Station selectordialscale,complete with tuning 11469Coil -Hum neutralizing coil (L17) tube escutcheon (for European use only) 12642Cone -Reproducer cone and dust cap (L18) 14543Dial -Band indicator dial and

40、mounting bracket 5118Plug -3 -contact male plug for reproducer 14544Dial -Station selectordialscale,complete with tuning 14360Reproducer -Reproducer complete tube escutcheon (for other than European use) 14358Screw -Screw, washer and lockwasher to hold corein 14540Drive -Variable condenser vernier d

41、rive p:nion gear and yoke shaft 14355Transformer -Output transformer (T2) 14345Drum -Variablecondenserdrive beltdrum,complete with set screws 14357Washer -Spring washer to hold field coil 14387Escutcheon -Tuning tube escutcheon Model 86T44 (Speaker No. 84091-1) 11982Fastener -Dial scale fastener 300

42、85tear -Indicator drive gear and hub assembly and indi- 14616Coil -Reproducer field coil (L12, L17) cator pointer stem and gear assembly14614Cone -Reproducer cone and voice coil (L18) 14341Idler -Station selector drive belt idler 5118Plug -3 -contact male plug 14344Indicator -Station selector indica

43、tor pointer 14613Reproducer -Complete 14382Indicator -Vernier indicator pointer 14615Transformer -Output transformer (T2) 5226Lamp -Dial lamp 14028Nut -Jamb nut for Stock Nos. 12884, 12807 and 12714 MISCELLANEOUS ASSEMBLIES 14340Pulley, -Station selector drive belt pulley and knob shaft 14362Reflect

44、or -Dial reflector, lamp bracket and tuning tube14396Escutcheon -Station selector escutcheon and crystal mounting bracket and clamp14269Knob -Volume control, tone control or range switch knob 14343Retainer -Drive shaft and pulley retainer -holds tuning14359Knob -Station selector knob knob shaft and pulley on range switch shaft11377Screw -Chassis mounting screw assembly 11324Resistor -560 Ohms -Carbon type, watt (R2)4982Spring -Retaining spring for knob, Stock No. 14359 3078Resistor -I0,000 Ohms -Carbon type,iwatt (R6, R7)14270Spring -Retaining spring for knob, Stock No. 14289