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In Reply to: RE: I'm always "go big or go home" posted by Tre' on April 09, 2021 at 07:56:17
Tre',
You were the one that influenced my preference for L-critical supplies. I'd agree - with a fresh supply design I'd go with a choke that would be more substantial.
In tight quarters with an existing supply that works I'd go with what fits and doesn't change B+ voltage much.
You can get 500+V electrolytic caps now - no need to series IMO with regards to the rest of the upgrades on this amp in question.
You can also get Panasonic 50uF film caps at 500V pretty cheap - and they are small!
Follow Ups:
"with a fresh supply design"
I always go off on a tangent.
It looks like the OP did make some additional room by providing a deeper case but with limited space you can only do what you can do.
Tre'
Have Fun and Enjoy the Music
"Still Working the Problem"
With existing stuff like a Dynaco chassis, there is not much room for 'improvement'. Just a bit too much of 'built to price point' for my taste. Now a St.70 converted to monoblock operation is quite another story. Swap an OPT for a choke, and install dampers where its EL34's used to live and you are now free of needing a GZ34, or a bigger power trans.
cheers,
Douglas
Friend, I would not hurt thee for the world...but thou art standing where I am about to shoot.
.
Have Fun and Enjoy the Music
"Still Working the Problem"
This is a big little amp. S271S output. S37 choke, Beckmann D/U power iron, and 6CJ3 rectifiers. Input stage is 25HX5. Balanced input. It is about as heavy as I am comfortable with... :)
cheers,
Douglas
Friend, I would not hurt thee for the world...but thou art standing where I am about to shoot.
good to see pics of your builds douglas!
custom shelving needed!
I'm guesstimating 38" in length ... ?
Nah, only 31 x 11.
Douglas
Friend, I would not hurt thee for the world...but thou art standing where I am about to shoot.
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