Antique radios, Old Time Radios
CV491
|
Country:
Europe
|
|
| Identical to |
CV491
= B329
|
| Similar
Tubes |
Normally replaceable-slightly different:
13D8
Other class quality (otherwise equal):
12AU7
; CV4003
; ECC82
; M8136
Heater different:
7AU7
|
| Base |
Noval, 9 pin miniature (USA pico-9) B9A
|
| Filament |
Vf 12.6 Volts / If 0.15 Ampere / Indirect / Specified voltage AND current AC/DC |
| Description |
This spec refers to the 12AU7. Tubes are 100% tested for Gm, emission and other parameters.
Tapped heater also permits operation at 6.3V 0.3A.
Text in other
languages (may
differ)
|
Dimensions (WHD)
incl. pins / tip |
22 x 57 x mm / 0.87 x 2.24 x inch |
| Weight |
14 g / 0.49 oz |
| Information source |
- - Manufacturers Literature
|
|
|
 |
|
CV491: R.O.
Rudolf Osterkamp
|
| |
|
CV491: ARRL Handbook 1972
Michael Schlör
|
| |
|
CV491: Manufacturer's Literature
Emilio Ciardiello
|
from Just Qvigstad
|
|
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):1
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