[Amps] 3-500Z convertion

[Steve Thompson]

Peter Chadwick wrote:
> Rich said:
> 
>>no, I thought he said only one of the two tubes was bad.<
> 
> Major confusion here........I thought he needed to replace both of them. From what Karl Arne said, it sounds a bit as if the 4X500 is 4-250/4-400 with a different base and an external anode. That makes them sound attractive, except for the fact that the shape of them is awkward - the anode cooler comes down very close to the glass envelope. 

If they're the ones I'm thinking of, the screen grid connection is a 
beast unless you have the proper socket.

Steve