Home Tube DIY Asylum

Do It Yourself (DIY) paradise for tube and SET project builders.

RE: What capacitors to buy to refurbish old RCA amp?

"The oil caps in those are fine but you say they are 8uf and the schematic says 14uf.The russian K40y-9 or the k42y will work well for the .1s. The 30uf lytic I would use a poly film cap there as these will outperform an electrolytic by a lot..There are good lytics but for that cap I would use a 35uf at 500v.
This amp has no global feedback that I can see.I would bump the cap's value after the choke if it's only 8uf and personally,I would ditch the 5R4 in favor of Schotkeys.For a single 5R4,you may be close to the limit with four 807s and a 6sl7 under dynamic conditions.
"For every complex problem there is an answer that is clear, simple, and wrong" H. L. Mencken


This post is made possible by the generous support of people like you and our sponsors:
  Sonic Craft  


Follow Ups Full Thread
Follow Ups

FAQ

Post a Message!

Forgot Password?
Moniker (Username):
Password (Optional):
  Remember my Moniker & Password  (What's this?)    Eat Me
E-Mail (Optional):
Subject:
Message:   (Posts are subject to Content Rules)
Optional Link URL:
Optional Link Title:
Optional Image URL:
Upload Image:
E-mail Replies:  Automagically notify you when someone responds.