Early Electronic Television
RGD 382-RG Technical Information
Television: Single channel superhetrodyne. 45.0 mHz video, 41.5 mHz
audio. 12 inch CRT (Mazda CRM-121) triode. Magnetic focus and
deflection, approx. 50 degrees. Original CRT was
electrostatic.
Radio: Short wave band 1 (16.5-50 meters), short wave band 2 (49-150 meters), medium wave band (195-550 meters) and long wave band (800-2000 meters). Phonograph: 78 rpm changer. |
| Function | Quan. | Type | Notes |
RF Chassis |
|||
| RF amplifier | 1 | SP41 | 41.5 -45 mHz |
| Mixer | 1 | SP41 | |
| Oscillator | 1 | P41 | 35 mHz |
| Video IF amplifier | 3 | SP41 | 7.5-10 mHz |
| Video detector | 1 | D1 | |
| Video amplifier | 1 | SP42 | |
| Audio IF | 1 | SP41 | 6.5 mHz |
| Audio detector/amplifier | 1 | ML42DD | |
| Audio output | 1 | PEN45 | |
|
|||
| Sync separator | 1 | SP41 | |
| Vertical (frame) sync amplifier | 1 | SP42 | |
| Horizontal (line) oscillator | 1 | T41 | Gas thyratron |
| Horizontal (line) output | 1 | PEN46 | |
| Vertical (frame) oscillator | 1 | T41 | Gas thyratron |
| Vertical (frame) output | 1 | PEN45 | |
|
|||
| Rectifier | 1 | 45/IU | B+ for RF chassis |
| Rectifier | 1 | UU5 | B+ for Time Base chassis |
| HV (EHT) rectifier | 1 | HVR2A | 5000 VDC |
|
|||
| RF amplifier | 1 | VP41 | |
| Oscillator/mixer (frequency changer) | 1 | AC/TH1 | |
| AFC | 1 | AC/SP1 | |
| IF amplifier | 1 | VP41 | |
| AVC/audio amplifier | 1 | HL41DD | |
| Detector | 1 | DD41 | |
| Audio phase inverter | 1 | HL41 | |
| Tuning eye | 1 | TV4A | |
|
|||
| Rectifier (HT) | 1 | UU5 | |
| Audio Output | 2 | PX4 |