[ARC5] 24V B+ supply for "command" receivers.

[Kenneth G. Gordon]

On 9 Mar 2013 at 21:24, john rose wrote:

> The R392 uses a series of tubes designed to run at 24v on the
> filaments and B+. However the tube spec sheets I have read all go out
> to at least 200v.

All? OK.

> Question; will a tube designed for 24v B+ SAFELY run
> with B+ at 200v or more?

Well, I would say at least UP TO 200 VDC. Since tubes are designed with 
considerable "overhead" I would say that yes, these could be made to work 
safely at higher voltages than 200....but lets not get carried away either.

> Question; if it does, then is this series of
> tubes really 6/12v tubes "in drag" so to speak?

Of course, yes..

As I said in another reply, I would be far more concerned about the voltage 
rating of certain other components than the tubes: capacitors first.

Ken W7EKB