[Collins] PM-2 questions / Parts availability

[Dr. Gerald N. Johnson]

On Tue, 2006-02-14 at 18:19 -0500, Steve Garwood wrote:
> I'm in the process of bringing up two PM-2 power supplies.  A couple of
> questions..
> 
>  
> 
> I've read quite a bit on previous posts - as an update, does anyone know or
> have a current source of parts such as the Transformer available?
> 
>  
> 
> I have one of Rod, K1ROD's upgrade replacement boards (I'll need a second
> one real soon).  This board looks to be a good upgrade for the supply if the
> current condition is questionable.  I also have four of the replacement
> capacitors.
> 
>  
> 
> Back to the questions - is the operation of the KWM-2A the same as using a
> 516F-2?  I realize that the duty cycle is different, with the PM-2 listed as
> "intermittent" duty.  Is there anything that I should know about if I plan
> on using one for normal day to day SSB work?

The operation is the same, if the voltages are the same. Just don't
spend a lot of time in lock-key position. The supply won't like that.
> 
>  
> 
> One of my PM-2's looks like it may have spent some time under water, so it
> may end up being "parts" while the quest for another salvageable unit
> continues.
> 
>  
> 
> There had been some traffic reference KWM-2A alignment a couple of weeks ago
> - I am gathering parts for testing so that I can make use of the information
> gained right here.  I'll put something out when I have some results.  
> 
>  
> 
> Steve Garwood, N0CZV
> 
> Attica, Ohio

-- 
73, Jerry, K0CQ, Technical Advisor to the CRA
All content copyright Dr. Gerald N. Johnson, electrical engineer