Leftover transformers

[h00hbt]

Hi all

Ok, so I have some leftover transformers that are looking for a project and I don´t know what to make with them. Do you have any suggestions?
I have just compleated a KT88 based amp so this is no option.

I would like to use them in an stereo integrated amp.

Power Transformer:

Primary:
230VAC

Sec:
1x390V 0,5A
2x5V 2A
2x6,3V 4A
2x3,15-0-3,15V 2A
1x40V 0,1A

Output transformers:

PP 4K

Cheers

[pieter t]

You could consider a fixed bias KT88 triode push pull amp; will give you some 15 watts of power.

[taj]

It screams push-pull EL34 with fixed bias to me. That's probably not a heck of a lot different than your previous KT88 project though.

..Todd

[eeyore]

Single ended 300B, 2A3, 45, etc? Can use a choke input to get a lower voltage, or tune the B+ with the cap. Or do SE with a pentode.

[eeyore]

Or a PP with real triodes.

[tubelab.com]

I vote for Petes red board:

Posted new P-P power amp design

[tomchr]

300B!! That transformer would be perfect for my latest 300B SET adventure.

~Tom

[Tony]

Output transformers:

PP 4K

sets are out unless he is willing to buy new SE traffos....

[Miles Prower]

Don't know about that power xfmr, but that 4K P-2-P OPT would work nicely with 6BQ6GA/GTB finals.

[h00hbt]

Originally Posted by taj

It screams push-pull EL34 with fixed bias to me. That's probably not a heck of a lot different than your previous KT88 project though.

..Todd

Hi taj

Yes! this is what I was thinking too but would 4K OPT´s work? You don´t happen to have a stereo integrated PP EL34 schematic somewhere?

Cheers