 |
| Identical to |
7729
|
| Similar
Tubes |
ECC83 (can normally be replaced - small diff'ce)
12AX7 (other class quality (otherw. equal))
|
|
| Base |
Noval, B9A
|
| Filament |
-: Indirect /
-: Parallel / series AC/DC /
If: 0.15 Ampere /
Vf 12.6 Volts /
|
| Description |
Premium 12AX7. Industrial or instrument service.
Text in other
languages (may
differ)
|
| Literature |
Essential Characteristics, GE 1973
Röhren-Taschen-Tabelle 14.A, (Franzis RTT)
Tube Lore, Sibley, USA 1996
|
|
|
|
|
|
RTT Schwandt
Günther Stabe
|
|
|
