Thanks for the 6c6b data, seems that I have to measure curves myself ...
I know these radiomuseum pages, unfortunalely they do not host the datasheets, or maybe they do but for paying members only ...
I have already built 2 little amps, both with 1p24b in push-pull as power outputs and 1j24b / 1j18b in the front end.
Recently I acquired a stash of 1j29b, 1j37b and 2p5b as well.
The 2p5b seems to be in the same power class as the 1p24b but is internally different (even more rods it seems). There is some basics on this russian site www.russiantubes.ru/prop.php?t=12&p=41 but thats rudimentary at best.
So the quest for 2p5b data is still open ...
I know these radiomuseum pages, unfortunalely they do not host the datasheets, or maybe they do but for paying members only ...
I have already built 2 little amps, both with 1p24b in push-pull as power outputs and 1j24b / 1j18b in the front end.
Recently I acquired a stash of 1j29b, 1j37b and 2p5b as well.
The 2p5b seems to be in the same power class as the 1p24b but is internally different (even more rods it seems). There is some basics on this russian site www.russiantubes.ru/prop.php?t=12&p=41 but thats rudimentary at best.
So the quest for 2p5b data is still open ...
excellent, thank you
you don' t happen to have one for 2p5b / 2П5Б ... ?
data I have collected so far:
| Name | 2P5B |
| Type | High-durable penthode |
| Application | HF oscillation and amplification |
| Cathode type | oxide,direct heating |
| Envelope | glass,miniature |
| Mass,g | 5 |
| Filament voltage,V | 1,2 |
| Filament current,A | 0,16-0,21 |
| Anode voltage,V | 90 |
| Anode current,A | 0,018 |
| Anode power,W | 2,3 |
| Grid1 voltage,V | minus 4,5 |
| Grid2 voltage,V | 90 |
| Grid3 voltage,V | 0 |
| Steepness,mA/V | 2,4-4,2 |
| Reverse grid current,uA | 0,1 |
| Microphnic noise,mV | 130 |
| Socket type | flexible |
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