Early Electronic Television
Ekco TA201 Technical Information
Single channel TRF. 45.0 mHz video, 41.5 mHz audio. 7 inch CRT (Mazda CRM-71) triode. Magnetic focus and deflection, approx. 50 degrees. Has audio detector but no audio output amplifier or speaker. |
| Video RF amplifier | 3 | SP41 | TRF - 42 -45 mHz |
Video detector |
1 | D1 | |
| Video amplifier | 1 | SP41 | |
| Sync separator | 2 | D1 | |
| Sync amplfiier | 1 | SP42 | |
| Horizontal (line) oscillator | 1 |
T41 | Gas thyratron |
| Horizontal (line) output | 1 | AC6PEN | |
| Vertical (frame) oscillator | 1 | T41 | Gas thyratron |
| Vertical (frame) output | 1 | PEN45 | |
| Audio RF amplifier | 1 | VP41 | 41.5 mHz |
| Audio RF amplifier | 1 | SP41 | 41.5 mHz |
| Audio detector/amplifier | 1 | HL41DD | |
| Rectifier | 1 | UU4 | B+ for sweep circuits |
| Rectifier | 1 |
UU4 |
B+ for other circuits |
| HV (EHT) rectifier | 1 | U21 | 3500 VDC |