RE: I need CCS board/kit with mu output tap ...

K&K Audio / Lundahl Transformers

Welcome! Need support, you got it. Or share youe ideas and experiences.

In Reply to: I need CCS board/kit with mu output tap ... posted by deathtube 667 on November 21, 2019 at 11:53:17:

Another possible option is presented by Morgan Jones in the 4th edition of his book Valve Amplifiers page 129. He tongue in cheek refers to it as a "beta-follower" as apposed to a" mu-follower". By substituting a BJT for the large value load resistor in the typical mu-follower circuit it lowers the required budget for B+ voltage for the stage and increases the impedance seen by the lower tube. Also, the grid of the upper tube is now direct coupled to the output of the lower tube, no capacitor. In the mu-follower and the Gary Pimm example I believe there is a capacitor connection required.

Hint to Kevin: Please make me a board.

"It is better to remain silent and thought a fool, then speak and remove all doubt." A. Lincoln

This post is made possible by the generous support of people like you and our sponsors:

Parts Connexion

Follow Ups Full Thread

Topic - I need CCS board/kit with mu output tap ... - deathtube 667 11:53:17 11/21/19 (3)

RE: I need CCS board/kit with mu output tap ... - JKT 12/15/1910:14:07 12/15/19 (0)

RE: I need CCS board/kit with mu output tap ... - Tre' 09:12:32 11/28/19 (0)

RE: I need CCS board/kit with mu output tap ... - KevinC 16:55:15 11/21/19 (0)

Follow Ups

RE: I need CCS board/kit with mu output tap ... - JKT 12/15/1910:14:07 12/15/19 (0)

FAQ

Post a Message!

Forgot Password?

Moniker (Username):
Password (Optional):
	Remember my Moniker & Password (What's this?) Eat Me
E-Mail (Optional):
Subject:

Message:	(Posts are subject to Content Rules)

Optional Link URL:
Optional Link Title:
Optional Image URL:
Upload Image:
E-mail Replies:	Automagically notify you when someone responds.

To view your new posting or follow-up, click on the RELOAD or REFRESH button on your browser.