Philco-Radio-and-Television-Corp-C-661 电路原理图.pdf

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1、MANUAL OF 1955 MOST-OFTEN-NEEDED RADIO DIAGRAMS PHILCO PORTABLE RADIO MODEL C-661 MODEL C-662 /; “2r-x slpp TC3 TC2 / IU4 TC4 IUS MODEL C-662 CONVERTER * AMPL ALIGNMENT CHART OCT- AVC - 1ST-AUOlO SIGNAL GENERATOR | CONNECTION TO RADIO DIAL SETTING Connect Bignal generator through a .1-uf. condenser

2、to pin 6 (converter grid) of 1R5. 455 kc. Use radiating loop. (See NOTE 1 below.) 1620 kc. Same as step 2. 1400 kc. Same as step 2. 600 kc. Tuning gang fully open. Repeat steps 2, 3. and 4 until no further improvement is obtained. RADIO SPECIAL INSTRUCTIONS Adjust for maximum output in order given.

3、1620 kc. (mark on extreme nght.) Adjust for maximum output. C1Bosc. trimmer 1400 kc. (second mark from nght.) Adjust for maximum output. CIAantenna trimmer 600 kc. (See NOTE 2 below.) Adjust for maximum output. Rock tuning gang while mak ing this adjustment TCIosc. core NOTE 1. Use a 6-to-8-turn, 6-

4、inch-diametex loop made up of insulated wire. Connect to generator terminals, and place about one foot from radio loop. NOTE 2. The tuning condenser can be set to the proper frequency by turning it until the dial pointer coincides with the respective marks on the dial backplate. *4 f” 4 iLr T0,“f CI

5、O# j0 2( 1 MIO ill |F=455KC pMTOTtO DET-RIC-Ht AUDIO CONYCAT IIAUR. OUTPUT _._ijTi!_ _i i ICJO tCM ClK 2 |MY eur J. cub * ieur BN (,I I IMa CABINET _ _ CIRCUIT _ AUDIO OUTPUT A C OB D C OPERATION BATTERY OPERATION OPERATING VOLTAGE POWER CONSUMPTION A C OP O C OPERATION BATTERY OPERATION ANTENNA INT

6、ERMEDIATE FREQUENCY PM LCO TUBES. SPECIFICATIONS PLASTIC PORTABLE FOUR TUBE SUPERHETERODYNE (PLUS SELENIUM RECTlflER) IBO MILLIWATTS BS MILLIWATTS .SIT VOLTS, AC OR DC IS-VOLT V BATTERY AND TS VOLt (f BATTERY 11 WATTS SO MA PROM TS VOLT *B BATTERY 2*0 MA FROM i S VOLT X BATTERY .MAGNECOR HIGH IMPEDANCE LOOR ASS PC JRS CONVERTCR.IUA l-F AMPLIFIER, IUS DETECTOR AVX 1ST AUDIO, 3V* OUTPUT _ Pt44 tf BATTERY IE1P7T V BATTERIES 68 收音机爱 好者资料库 RadioFans.CN