Tubes Asylum

Questions about tubes and gear that glows. FAQ

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

RE: 12AT7-tubes for Preamp and Poweramp :JJ vs Telefunken NOS

Posted by SteveM324 on March 1, 2017 at 10:27:03:
I have an AVA FET valve CF preamp and 600R power amp. I replaced all the stock JJs
with Mullard CV4024 (12AT7) and Mullard CV4003 (12AU7). Everything improved over
stock including much better midrange and highs. This combination will give you a nice touch of warmth without going too far.