Dynaco-Doctor Forum

Welcome! Need support, you got it. Or share your ideas and experiences.

Use this form to submit comments directly to the Asylum moderators for this forum. We're particularly interested in truly outstanding posts that might be added to our FAQs.
You may also use this form to provide feedback or to call attention to messages that may be in violation of our content rules.

You must login to use this feature.

Inmate Login

By default, logging in will set a session cookie that disappears when you close your browser. Clicking on the 'Remember my Moniker & Password' below will cause a permanent 'Login Cookie' to be set.

Moniker/Username: The Name that you picked or by default, your email. Forgot Moniker?	Examples "Rapper", "Bob W", "joe@aol.com".
Password:	Forgot Password?
	Remember my Moniker & Password ( What's this?)

If you don't have an Asylum Account, you can create one by clicking Here.

Our privacy policy can be reviewed by clicking Here.

Inmate Comments

From:
Your Email:
Subject:

Message Comments

Original Message

Dynaco 400 left channel crackles when furnace cycles

Posted by ttone007@gmail.com on December 28, 2010 at 09:44:28:
Hello Folks,

I'm a longtime audio engineers and I have two beloved Dynaco 400 amps in my set up. I have done lots of tweaks and repairs on them and they are very stable and great sounding. They both have the Vishey Dale resistor mods done to them.

I notice both of my amps (in two different locations) are subject to a low level crackle when the furnace cycles on. The crackle is in the left channel only on both amps. We have hot water radiator style heat and the momentary low level crackle happens when the furnace flu damper opens.

Any ideas?

Thanks,
Mike in Mount Prospect, IL.