SET Asylum

Single Ended Triodes (SETs), the ultimate tube lovers dream.

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

MV rectifier cloud flicker

Posted by aknaydenov on February 7, 2017 at 14:05:25:
Hello,

I recently installed MV rectifiers (DCG4/1000 RTC) on my SET monblocks. I'm very happy from their performance, although there is something that makes me wonder...

The ionized mercury (blue cloud) sometimes starts to flicker at low random frequencies, ranging from 1 to 10Hz, non-periodically, slightly. This happens from tube to tube. Sometimes one rectifiers stops flickering, but another begins.
A problem is, it is invisible to the camera, but visible to the human eye.

Can anyone tell me, any mechanism of the reason it happens and should I be worrying about it?
The current draw should be constant (100mA), because it's a SET amplifier. The flickering is independent of any music.

Best regards,
Alexander.