Fisher Phono Upgrades

Vintage Asylum

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

The Fisher phono section has come under some scrutiny compared to the Scott 340B phono section. The Fisher phono section will respond greatly with the following changes.

Two coupling capacitors are in the phono tube circuit. The .01uF grid to plate ceramic cap was replaced with a Russian K40Y-9 and the .022uF output coupling cap was replaced with a Vitamin Q .047uF coupling cap. Both caps are rated at 200 volts. Higher voltage ratings are, of course, no problem.

Next, the very expensive Brimar CV4004 single wing plate tubes or a very close second Westinghouse USA manufactured 12AX7 short narrow plate will finish the changes.

Many others report world class performance with the fore-mentioned modifications I posted early last winter.

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

Sonic Craft

Topic - Fisher Phono Upgrades - sony6060 06:02:34 08/17/14 (0)

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.

To view your new posting or follow-up, click on the RELOAD or REFRESH button on your browser.