Early Electronic Television
General Electric HM-225/226 Tube List
Television: Five channel (50-90 mHz) superhetrodyne.
HM-225: 9 inch CRT.
Electrostatic focus, magnetic deflection, approx. 45 degrees. HM-226:
12 inch CRT. Electrostatic focus, magnetic deflection, approx 50
degrees.
|
|
Function |
Quan. |
Type |
Notes |
TV Chassis |
| Oscillator/Mixer |
1 |
6F8 |
|
| Video IF amplifier |
2 |
6AB7 |
Video (9.5-12.75 mHz), audio (8.25 mHz) |
| Video IF amplifier |
2 |
6AC7 |
|
| Video detector |
1 |
6H6 |
|
| 1st video amplifier |
1 |
6F8 |
|
| Video output |
1 |
6F6
|
|
| Horizontal (line) oscillator |
1 |
6N7 |
|
| Horizontal (line) output |
1 |
6AL6
|
|
| Vertical (frame) oscillator |
1 |
6F8
|
|
| Vertical (frame) output |
1 |
6V6
|
|
| Audio IF amplifier |
1
|
6SK7 |
8.25 mHz |
| Audio IF amplifier |
1 |
6B8 |
|
| Audio detector, amplifier |
1 |
6SC7 |
|
| Audio Output |
2
|
6V6 |
|
| Rectifier (HT) |
2
|
5U4 |
|
| High Voltage (EHT) |
1 |
2X2 |
4000 VDC |
Radio Chassis (HM-226) |
| RF ampifier |
1 |
6SA7 |
|
| IF amplifier |
1 |
6SK7 |
455 kHz |
| Detector/AVC |
1 |
6H6 |
|
| Audio amplifier |
1 |
6SF5 |
|
| Audio inverter |
1 |
6J5 |
|
| Audio output |
2 |
6Y6 |
|
Invisible text to format smartphones. xxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxx xxxxxx xxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxx
|
