Amp/Preamp Asylum

Looking for a new Amp or Preamp? If you're after tubes, post over here.

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

Choke power supplys in Comp Symmetry BJT power amps

Posted by grhughes on August 19, 2011 at 08:00:32:
Granted I'm not a school trained EE. But it seems to me that just a bridge rectifier and two big caps 10,000 ufd, 100v computer grades and maybe a snubber .1 ufd is not enough CLEANING. Some fierce charging current is going on that makes a rather dirty noise floor. Why aren't chokes and solid state regulation (ripple filters) applied to BJT complemetary symmetry power amplifiers? Some say it eats up the damping factor like gang busters. Appears to me that each stage of an amp needs it's own bipolar power supply ripple filter, the input and driver stage more so than the output stage. Anyone used solid state regulation in the C-S BJT amp? Ray