Tube DIY Asylum

Do It Yourself (DIY) paradise for tube and SET project builders.

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: copper cap rectifier

Posted by David McGown on October 30, 2001 at 02:21:19:
Solid state diodes plus a current inrush limiter plus a resistor simulating the voltage drop is not the same a tube rectifier. Garden variety diodes (iN1007, etc) produces switching noise when the current goes into reversal, which is less with better types but still present. Hexfreds and high speed/high efficiency diodes help here, however, a reverse recovery spike filter will smooth the sound considerably.
Considering that there are sonic differences between different manufacturers tube rectifiers of the same type, I would expect the Copper Cap to have a distinctly different sound than a tube rectifier.