[Central-Electronics] Correction: PS-2 or PS-1

k6jek k6jek at comcast.net
Tue Dec 21 16:54:02 EST 2010


For the experiments I want to do, A PS-2 would be better.  A PS-1 would be OK, however.

On Dec 21, 2010, at 12:57 PM, k6jek wrote:

> Anyone have a PS-1 from a parts rig?  Also, tips ad pointers on the 20A info would be most appreciated.  
> 
> My 100V is now just so wonderful I decided to step back in time and get a 20A which I'll be picking up in January.  "It needs work." says Brian.  Perfect.  
> 
> I fully expect to be fighting sideband suppression issues with the 20A.  It sure would be grand if I had an extra PS-1 to goof around with.   Has anyone broken the code on "adjusted at the factory" don't touch them variable caps in the PS-1?  
> 
> Incidentally, I could not get  decent the sideband suppression on the 100V until I rebuilt the PS-2.  I got my hands on a just calibrated very high precision LCR meter, a Stanford Research SR720.  None of the bridged parts were in spec which is .1%.  Some were out 4%.  This was not a project for the meek or hurried, but I did manage to get it rebuilt in spec and then was able to get  satisfactory opposite sideband suppression.  But that's a longer story ...
> 
> Can't wait to get the 20A and 458.  I even have a huff and puff kit lying around somewhere.  
> 
> 
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