Amp project help needed

[lugnut]

I have a couple of Peerless 16458 output transformers I'd like to use in a new project. I don't really want to redo a W5 Heath, so I was thinking of a 6B4/6A3 PP or a 6550/KT88 single ended amp. Would these outputs be suitable? Any thoughts or schematics greatly appeciated.Thanks for any help!

[vinylkid58]

Originally Posted by lugnut

I don't really want to redo a W5 Heath

Why not?

jeff

[lugnut]

Nothing against the Heath W5, just would like to try something different that others have found to their liking.

[Frank Berry]

If it's a push-pull output transformer, you can't use it in a single-ended amp.

[kevinkr]

The transformer is not suited to SE applications at all. Those transformers are worth a great deal of money and selling them would probably pay for an entire Tubelab SSE amp or possibly even a Tubelab SE..

Alternatively you could build something with KT88 using a different topology than the W5 which IIRC was somewhat noted for instability.. You could probably do something similar to a Citation II for example..

[vinylkid58]

Originally Posted by lugnut

Nothing against the Heath W5, just would like to try something different that others have found to their liking.

Well, if I had a stash of 6B4G's, I'd probably build something like these:

6B4G Push-Pull Amp

heff

[lugnut]

Originally Posted by vinylkid58

Well, if I had a stash of 6B4G's, I'd probably build something like these:

6B4G Push-Pull Amp

heff

That amp by Millet is one I've been looking at. Would the W5 transformers be a good match?

[vinylkid58]

Originally Posted by lugnut

Would the W5 transformers be a good match?

Not the best match if you're trying for max. power from PP 6B4G's. They were designed for a completely different tube.

jeff