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The only schematic I can find that is close is for the 196-00 and I have been able to find the differences, but mainly looking for advice/suggestions on a few changes to my amplifier. See schematic here...

Anyone? Or just use common 0.25? Thanks, Lin

If the 2 caps in the power supply voltage doubler (black caps in picture) are increased from 100uf to 250uf would it matter, be good, bad, other? Thanks for any input.

Edited after Dswankey's helpful post. I have a 6L6 tube amplifier with a Magnavox 300071-1 PT and it came to me (3rd or 4th owner) with a pair of 5U4GA tubes for the dual rectifiers. In doing some research I found a post on antiqueradios.com that claimed the 5V for this transformer is rated at 4...

A friend has a pair of Industrial La Scalas, many years ago he had a woodworker dress them up with additional wood to give them a nice finished look. I'm doing some work on them and found the woodworker veneered and stained the removable bottom panel and apparently put some glue around the...

I had a 2005 (original version) Decware Taboo EL84/6BQ5 SEP amplifier with a low level power supply hum. All caps and the choke were replaced, but the hum remained, so I assumed it was a ground issue. The rectifiers used were at least 2 different 5Y3s and possibly a 5U4. Sold the amp and the new...

Not much information, but curious as to any possible benefit for some equipment (I have no interest in buying one). Any thoughts? http://www.thebestamp.com/Accessories/Super_Rectifiers.php

I just noticed them on ebay, anyone hear of these made in Indiana OPTs? There is several different push pull transformers listed.

I have an amplifier with a bad choke in the power supply and I'm having trouble finding one to fit under the chassis. How can I eliminate it? Thanks for any help.

I'm going to build this amp using an old amp chassis (20" x 12" x 2 1/2"), my question is about power transformer and choke placement. How close can they be? I have 2 ways to place the choke, one is very close to the PT and the other is a little further away with the rectifier tube between...

Bought a pair of speakers from Josh, they were very well packed and shipped quickly. He provided a number of pictures, it was like I was there in person inspecting them. :thumbsup:

Just bought an amplifier from Hawkeye83, it was an easy transaction with very good communication. :bigok:

Bought a nice Ampex tube amp from biscuithead; quick and friendly replies in our conversation, shipped promptly. :thumbsup:

Brian sold me a nice pair of refoamed Snell KIIs for a great price and packed them well. :thumbsup:

https://www.jbl.com/loudspeakers/ST...ar_STUDIO 590_color=Black-USA-Support#start=1

:thumbsup::thumbsup::thumbsup: Bought a pair of 12" drivers at a more than fair price. They were packed so well I thought I was going to find a tube amp in there also. ;) A pleasure to transact with, thank you! Lin