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

Thanks, Ray, I didn't realize the rectifier tube....

Posted by radiance on December 5, 2006 at 11:23:49:
....heats up more slowly than the others...
or maybe it's that even though it heats up at the same rate, the B+ comes on softly, so cathode stripping doesn't occur anyway...
in either case, I see now - yeah, you're right, I don't need the delay.
Well, how about that - Heathkit knew what they were doing after all!!
Another great reason to use tube diodes, sure saves a lot of trouble. And gives better sonics. Well worth the voltage drop and filament current, I think.
Thanks for the caution about the cathode ending up at B+, good reminder.
best, charles
"It ain't a comeback until it's left the shop" Jimmy Dunne, the first man to drive a VW Beetle faster than 200 mph, and he has the forehead scar to prove it; I will always honor him for taking a chance on me when I wanted to be an engine mechanic.