Antique radios, Old Time Radios
K81A
|
Country:
Netherlands
|
|
| Identical to |
K81A
= R290
|
| Base |
Noval, 9 pin miniature (USA pico-9) B9A
|
| Was used by |
Technology / Measurement |
| Filament |
Vf 1.85 Volts / If 2.5 Ampere / Direct |
| Description |
100V anode voltage, 15 mA. 13 dB noise level across 50 ohms load. Useful up to 300MHz.
|
| Tube prices |
1 Tube prices (visible for members
only)
|
| Information source |
- - Manufacturers Literature
|
K81A: Funktechnik 18/65
Egon Strampe
|
K81A: RTT Schwandt
Günther Stabe † 19.8.20
More ...
|
Just Qvigstad
|
K81A: Valvo-Handbuch Spezialröhren 1963
Anonymous 201 Collector
More ...
|
Collection of
Collection of a member from FIN |
|
|
|
You reach this tube or valve page from a search
after clicking the "tubes" tab or by clicking a tube
on a radio model page. You will find thousands
of tubes or valves with interesting links. You
even can look up radio models with a certain tube
line up.
[rmxtube-en]
| Data Compliance |
More Information |
|
|
|
