Antique radios, Old Time Radios
12AD7
 |
| Identical to |
12AD7
|
| Similar
Tubes |
Multiple differences or of other kind:
12AX7
|
|
| Base |
Noval, B9A
|
| Filament |
Vf 12.6 Volts / If: 0.225 Ampere / -: Indirect / |
| Description |
Low-hum, low-microphonic dual triode, intended for audio preamplifier stages. Mu 100.
Similar to 12AX7 with heater current raised to 225mA.
Text in other
languages (may
differ)
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| Tube prices |
0 Tube prices (visible for members
only)
|
| Literature |
Essential Characteristics, GE 1973
-- Original-Prospect
Tube Lore, Sibley, USA 1996
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Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Karel De Reus
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K.H.Fischer
Karlheinz Fischer
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RTT 1974 (Franzis) 13. Auflage
Martin Renz
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| Usage in Models (calculation each 25th of the
month) |
2= 1959? ; 1= 1960? ; 1= 1966 ; |
| Number of Models at Radiomuseum.org with
this tube (valve, valves, valvola, valvole,
válvula, lampe): 4 |
|
| No further Information
for |
12AD7 |
|
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