RE: Setton RS-440 Noise in Phono stage

Vintage Asylum

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

In Reply to: Setton RS-440 Noise in Phono stage posted by Roypercy on December 12, 2021 at 13:34:50:

Another possibility is a noisy transistor. 458 transistors were nearly ubiquitous in 1970s equipment. They are noisy and unreliable. We often do wholesale replacement of them in equipment. If you do find and replace them, recommend matched pairs across channels. Replacements are cheap. And it's pretty close to true that a signal level audio NPN or PNP can be replaced be a signal level transistor of the same polarity and the circuit will work. However, we use low noise transistors. In fact, we have a box literally labelled "'458 replacement transistors."

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

Kimber Kable

Follow Ups Full Thread

Topic - Setton RS-440 Noise in Phono stage - Roypercy 13:34:50 12/12/21 (3)

RE: Setton RS-440 Noise in Phono stage - Lee of Omaha 07:34:26 12/13/21 (0)

To determine if it is RFI/EMI coming into the phono jacks.. - viridian 14:47:35 12/12/21 (0)

RE: Setton RS-440 Noise in Phono stage - Uncle Mike 14:41:22 12/12/21 (0)

Follow Ups

RE: Setton RS-440 Noise in Phono stage - Lee of Omaha 07:34:26 12/13/21 (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.