RCA TRK-12 and Westinghouse WRT-703 Technical Information
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Television: Five channel (50-90 mHz) superhetrodyne. 12 inch CRT (12AP4) tetrode. Magnetic focus and deflection, approx. 40 degrees.
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Radio: Short Wave (7-22 mHz), Medium Wave (2.3-7 mHz) and Standard Broadcast (540-1720 kHz) bands.
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Function |
Quan. |
Type |
Notes |
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TV Chassis |
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Oscillator |
1 |
6J5 |
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Mixer |
1 |
6AC7 |
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Video IF Amplifier |
4 |
6AB7 |
Video (9.5-12.75 mHz), audio (8.25 mHz) |
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Video IF Amplifier |
1 |
6AC7 |
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Video detector |
1 |
6H6 |
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Video amplfier |
1 |
6AC7 |
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DC restorer |
1 |
6H6 |
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Sync separator |
1 |
6N7 |
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Sync separator |
1 |
6Y6 |
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AVC |
1 |
6F8 |
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Horizontal (line) oscillator |
1 |
6N7 |
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Horizontal (line) output |
1 |
6L6 |
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Damper |
1 |
5V4 |
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Vertical (frame) oscillator |
1 |
6N7 |
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Vertical (frame) output |
1 |
6J5 |
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Audio IF amplifier |
1 |
6SK7 |
8.25 mHz |
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Audio IF amplifier |
1 |
6AB7 |
8.25 mHz |
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Audio detector/AVC |
1 |
6H6 |
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Radio Chassis |
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RF amplifier |
1 |
6K7 |
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Mixer |
1 |
6A8 |
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Oscillator |
1 |
6J7 |
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IF amplifier |
2 |
6K7 |
455 kHz |
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Detector/AVC/audio amp |
1 |
6R7 |
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Audio amp |
2 |
6J5 |
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Audio Output |
2 |
6F6 |
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Tuning eye |
1 |
6U5 |
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Radio Power Supply Chassis |
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Rectifier (HT) |
1 |
5U4 |
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TV Power Supply Chassis |
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Rectifier (HT) |
1 |
5T4 |
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High Voltage (EHT) |
1 |
2V3 |
6000 VDC |