Westinghouse-Electric-Corp-V-2239-6 电路原理图.pdf

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1、olK 1 I. ALL RESISTANCE VALUES IN OHMS & ALL CAPACITANCE VALUES IN MFD 2- -L VOLTAGES MEASURED FROM COMMON NEGATIVE USING VT.VM. of* | READINGS SHOULD BE AS SHOWN 20%. VOLUME CONTROL SET KT MAXIMUM. 3. CHASSIS GROUND db COMMON B- + - 4. SW2 IS SHOWN IN RADIO POSITION. Y *5. LATER PRODUCTION. ALIGNME

2、NT While making the following adjustments, keep the volume control set for maximum output and the signal generator output attenuated to weakest usable signal level. Step Connect Signal Generator to Signal Gen. Frequency Radio Dial Connect VTVM Across Voice Coil and Adjust for Maximum Output - i Stat

3、or of ant. tuning capacitor (A) through a 200 mmf capacitor. 455KC 400 Cps. 30% Mod. Minimum capacity Top and bottom slugs of Tl. * 2 Radiated signal 1625 KC Minimum capacity Oscillator trimmer (D) 3 Radiated signal 1400 KC 1400 KC Antenna trimmer (B) * It is racommanded that a fiber aligning tool that snugly fits tha slot In tha powdered Iron core be used to prevent chipping of the slot. 152 收音机爱 好者资料库 RadioFans.CN