Re: Fisher X-200 Bias Question

Vintage Asylum

Classic gear from yesteryear; vintage audio standing the test of time.

In Reply to: Fisher X-200 Bias Question posted by DHJ on December 30, 2003 at 08:37:13:

Thanks for the ideas. The schematic calls for a plate voltage of 400v with bias of -16v. I think maybe the negative voltage is throwing me off--changing the bias from -16v to -22v is actually a reduction, not an increase, in bias, causing the B+ to increase, which puts more stress on the filter caps. I guess the 457 plate voltage may be ok with the new lower bias setting (i think the max spec on the 7591A is 550v). Looks like I'm going to have to replace the filter caps. Thanks again for your help and happy new year!

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

Signature Sound

[ Signature Sound Lounge ]

Follow Ups Full Thread

Topic - Fisher X-200 Bias Question - DHJ 08:37:13 12/30/03 (3)

Re: Fisher X-200 Bias Question - DHJ 15:06:07 12/31/03 (0)

Re: Fisher X-200 Bias Question - microbe 10:20:21 12/30/03 (0)

Re: Fisher X-200 Bias Question - scrooie looie 09:48:14 12/30/03 (0)

Follow Ups

Re: Fisher X-200 Bias Question - DHJ 15:06:07 12/31/03 (0)

You can not post to an archived thread.