Pilot-Radio-Corp-Pilotuner 电路原理图.pdf

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1、MANUAL OF 1948 MOST-OFTEN-NEEDED RADIO DIAGRAMS PILOT RADIO - MODEL T-601 ALIGNMENT CHART Insulated alignment tools are necessary. The output meter should be a D.C. vacuum tube voltmeter with a range of at least 20 volts. _ _ s9nal 9enerator should cover the frequencies of 10.7, 90 and 106 me Tuning

2、 Range 88-108 Me. Allow the PILOTUNER to warm up for at least 30 minutes before making any adjustments. The location of the adjustment screws is indicated clearly on the schematic diagram. Follow the sequence in the alignment chart. Tuning Range 88-108 Me. CIRCUIT ALIGNED RCVR. DIAL POINTER SIGNAL G

3、EN. METER CONNECTIONS CONNECTIONS TRIMMER OR SLUG ADJUSTMENT Through .01 mfd. Across two I00K resistors cap. to grid of indicated by dotted 6BE6 lines in schematic Adjust for maximum out. put Ratio Detector 3 88 r Repeat Step No I 10.7 me Same as No. I From: Junction of two I00K resistors TO: Audio

4、output of ratio detector. Connec tions indicated by dot ted lines in schematic j Adjust meter to zero (Check proper zero set) Meter should register re verse polarity when slug is rotated through zero output. 4 j 90 r Through carbon 300 ohm resistor to Ant. Terminal Same as Step No. I Same as Step No

5、. I 5 I 106 r Same as No. 4 Same as No. Same as No. Repeat Steps No. 4 & 5 Same as No. 4 Same as No. Same as No. I Same as No. 4 Same as No. Same as No. 1st 1 F a CAN ASSY 2nd I Fa CAN ASSY RATIO DETECTOR a CAN ASSY LINE CORD 103-18 OI. ann I 69A6U ON POWER . SWITCH ( o o 6 PHONOX FM INPUT OUTPUT r-

6、Jn V -|_V_TvmFnfor detect or ALIGNMENT _ ONLY * : : J500pjjf NOTE Ka.5 1000-n. ALL CONDENSERS 400V UNLESS OTHERWISE INDICATED 140 S. RATIO DETECTOR SEC ID7MC Tq St RATIO DETECTOR PRI I0 7MC 3 Ss 2ND| F SEC. I0 7MC T S4 2*01 F PRI 10 7 MC 7- Ss 1ST I F SEC 10 7 MC !$ 1ST | F PRI, 10 7 MC |Tt OSC TRIM

7、MER 06 MC S6 Ps OSC PADDER 9 0 MC |T ANT TRIMMER 106 MC Pn *Pto R. F . PADDER 90 MC ,u S2 UPPER S. LOWER TP ALIGN RECEIVER USE FREQUENCIES as INDICATED ON LEFT. A0JUST ALL TRIMMERS FOR MAX DC OUTPUT ACROSS 33Kil RESISTOR IN 6AL5 CIRCUIT. * TO ALIGN SECONDARY OF RATIO DETECTOR CONNECT METER AS INDICATED IN SCHEMATIC AND ADJUST S,. FOR ZERO OUTPUT. 收音机爱 好者资料库 RadioFans.CN