OTL Asylum

RE: Lew did you ever do anything with the 1K B+ feedbacK

69.108.78.168

Tre'

In Reply to: RE: Lew did you ever do anything with the 1K B+ feedbacK posted by Satelliteman on July 09, 2008 at 23:17:17

Plate to Plate across the circle. It's the same as cross coupling is a conventional push pull circuit. It adds feedback.
5 watt will do.
Tre'
Have Fun and Enjoy the Music
"Still Working the Problem"

Edits: 07/09/08 07/09/08

Follow Ups:

RE: Lew did you ever do anything with the 1K B+ feedbacK - Satelliteman 02:30:29 07/10/08 (1)
Thanks Tre'
I think I have it installed already , although I dont recall it being on the schematic at all . I experimented just days ago with this resistor attempting to hear what its function was . As for the plate resistors , I found one i had not soldered at all !!! BUT - like all good wire wrap techniques do , it was still snug as a bug , with a good turn and 1/2 around the socket tag . RATS !! - and I thought I was going to hear some improvement from one channel .....it wasnt to be.

Edits: 07/10/08 07/10/08 07/10/08
- RE: Lew did you ever do anything with the 1K B+ feedbacK - Zero Cool 21:54:42 08/31/08 (0)
  This is a really good photo! I have 2 of Ralphs very early prototypes that i have studied. Several things i notice in this photo.
  
  1- the cathode resistors are 1 ohm 1 watt. smaller then i expected.
  
  2- On my proto's. the last tube in the row has a 100 ohm 1/2 watt resistor between the grids. I see in this proto that all grids are connected with a resistor where as my protos all grids are tied directly together in one long string except the last grids.
  
  3- I wish i could see what is the value of those orange grid resistors??
  
  4- The CrCrC power supply is interesting.
  
  5- Interesting construction of the B+ & B- lines. one separate wire for each of two tubes. Curious why not 1 wire to feed all 4?? Wouldn't the unequal path lengths cause an issue to some degree?
  
  A lot can be learned from this photo. PLEASE send me more!

Post a Followup:

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.

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

Schiit Audio