Re: Cheap B+ boost

[mike s]

There's a copy of a schematic nice old fashioned KT66 push-pull fixed bias 50W amp on this page -
http://mike.wepoco.com/Home/retro-geekery/valve-amplifiers/push-pull-kt44-triode-amplifier

It uses 3 rectifiers!

[John L Stewart]

There's a copy of a schematic nice old fashioned KT66 push-pull fixed bias 50W amp on this page -
http://mike.wepoco.com/Home/retro-geekery/valve-amplifiers/push-pull-kt44-triode-amplifier

It uses 3 rectifiers!

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Here is a link to tube & amp information related in time & origin to the KT44.

http://frank.pocnet.net/sheets/126/k/KT55.pdf

But where does one find a KT55 or KT44 these daze?

Cheers, John

[Big Bad Bob]

On 04/12/11 15:41, mike s so wittily quipped:
> There's a copy of a schematic nice old fashioned KT66 push-pull fixed bias 50W amp on this page -
> http://mike.wepoco.com/Home/retro-geekery/valve-amplifiers/push-pull-kt44-triode-amplifier
>
> It uses 3 rectifiers!
>

one was for the G1 bias supply (supplying -volts to a phase splitting
transformer - ewww). the other 2 are for full-wave but with plates tied
together, one tube for each phase. Yeah, 3 glowy bottles just for
rectification. PA system maybe?