Early Electronic Television
HMV 1800 Technical Information
Single channel superhetrodyne, 9 inch triode CRT. Magnetic focus and deflection, approx. 50 degrees. |
| RF amplifier | 1 | Z62 | |
| Oscillator/mixer (frequency changer) | 1 | X41 | |
| Video IF amplifier | 3 | KTZ41 | 3-6 mHz |
| Video detector | 1 | D42 | |
| Video amplifier | 1 | KTZ41 | |
| Sync separator | 1 | D63 | |
| Sync amplifier | 1 | KTZ63 | |
| Horizontal (line) oscillator | 1 | KTZ63 | |
| Horizontal (line) output | 1 | KT44 | |
| Vertical (frame) oscillator | 1 |
||
| Vertical (frame) output | 1 | KT61 | |
| Audio IF amplifier | 1 | KTW61M | 2.5 mHz |
| Audio detector/noise limiter | 1 | D63 | |
| Audio amplifier | 1 | DH63 | |
| Audio output | 1 | KT61 | |
| Rectifier (HT) | 1 | U52 | |
| HV (EHT) rectifier | 1 | U16 | 3500 VDC |