Antique radios, Old Time Radios
AY225
|
Country:
United States of America (USA)
|
|
| Identical to |
AY225
= UY227
= AY227
= MY227
|
| Similar
Tubes |
Other base:
UX225
|
| First year |
1927
Saga of the Vacuumtube, Tyne page 320
|
| Predecessor Tubes |
UX225
|
| Base |
UY-Base, 5 Pins (USA, April 1927)
|
| Filament |
Vf 2.5 Volts / If 1.75 Ampere / Indirect / Parallel, (AC/DC) |
|
|
 |
|
AY225: ARRL Handbook 1972
Michael Schlör
|
| |
|
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