Grounding Scheme

[Geezer]

  Hoffman Amplifiers
    > Tube Amp Building - Tweaks - Repairs
        > Grounding Scheme      
 
<< Prev Topic | Next Topic >>  
Author  Comment  
eddiejg
Senior tube assistant
Posts: 252
(3/30/04 2:51 pm)
 Grounding Scheme
--------------------------------------------------------------------------------
 I have tried several different grounding schemes all with pretty good results.
Only one of the 1st amps I built gave me any excessive noise, and that was mainly due to poor layout of the preamp tubes.
I just built another Spitifre & used the exact grounding scheme from the board layout I got from House of Jim:
members.shaw.ca/house-of-...ev%202.pdf
I was very surprised because this is THE quietest amp I have built so far.
The layout has only the preamp tube cathode, input jack & pots going to the preamp ground.
The PI & all filter caps go to the power ground.
I'm curious if I just got lucky or if this just happens to be a good layout noisewise for this particular design.
I'm going to use it for my next amp or 2 to see if I can duplicate the same good results with other circuits.
Anyone ever use this type of grounding scheme?
What amp?
Results?
Thanks.
-Ed
 
 
 << Prev Topic | Next Topic >>

 

 Topic Commands
 Click to receive email notification of replies
  
jump to:  Tube Amp Building - Tweaks - Repairs (New)New Product Suggestions (New)Praises - Complaints - Suggestions (New)Buy - Sell- Trade (New)Archives (New)    
 

- Hoffman Amplifiers - Tube Amp Building - Tweaks - Repairs - Hoffman Amplifiers -



Powered By ezboard® Ver. 7.32
Copyright ©1999-2005 ezboard, Inc.