SRS-360 East German transmitting tubes

[lcsaszar]

I found two pieces of these babies at a cleanup... Googleing for them:

http://www.radiomuseum.org/tubes/tube_srs360.html

Are they of any good for, say a SE triode amp or something?

 

[Colt45]

can't find too much on em. apparently equiv with a RS630.

Looks like you'll have to run ludicrous plate voltage, or grid current, or both. gonna need a gigantorg output trafo too...

http://frank.pocnet.net/short/054/3/387.pdf

 

[Colt45]

here's paper for the western equiv, philips TB3/750
http://www.mif.pg.gda.pl/homepages/frank/sheets/030/t/TB3-750.pdf

 

[lcsaszar]

Good info, thanks a lot. Can they be operated in "starved mode", that is let's say Ua=500V, Ia=100mA in AB1 setting (no grid current)?

 

[hemgjord]

Good info, thanks a lot. Can they be operated in "starved mode", that is let's say Ua=500V, Ia=100mA in AB1 setting (no grid current)?

Looking at the tb3-750 curves above you can see that at 500V, 100mA is ON the Vg=0 curve so grid current is required to get any output.
On the other hand at 1500-1800V on the plate and a decent 10K opt 20-40W triode SE power is acheivable i A1. if you have a driver that can source some 30 mA grid current you could get some 60-70w in A2 at similar plate voltages.

But please don't even think about it if you're not comfortable with the high voltages involved.

/Olof

 

[wrenchone]

Of course. 5V/14A if a stiff requirement for heating. If you're going that far, you might as well not starve the poor beast at the plate.