[R-390] CV157 manual

[Roy Morgan]

have not been turned on for over 20 years and I'll need to bring them up
slowly.

Glenn,

If there are old electrolytic caps in the power supplies and you Bring It
Up Slowly on a Variac, you may destroy the power transformer.  I have a
diatribe on this but can't get to it now (computer is busted) but briefly:

An electrolytic cap can reach a limit while reforming that tuns it into a
shorty circuit.  This overloads the power transformer, and you will not
know it.

Just don't do that.  (Sorry I can't send more information: both my only
computer and I are both sick.)

Roy


On Tue, Feb 18, 2014 at 8:53 PM, Glenn Scott <wa4aos at aol.com> wrote:

> Thanks so much for the overwhelming response with links and offers to scan
> manuals. I'll start with the links and see where this takes me.
> These units have not been turned on for over 20 years and I'll need to
> bring them up slowly. The owner was never a licensed ham but enjoyed
> listening to SW and us crazy hams.
>
>
> They all appear to be in fairly good shape other than dusty. The front
> panels have meters and I have seen no damage, YET, such as units being
> dropped or banged around. Based just on cosmetics, they all seem to be at
> least 7's from my limited observations and HIGHLY STRAINED back..
> I have had an insane offer to make a huge profit for the lot from a buyer
> in JA land but for now they will stay in SC until I have a chance to check
> them out. Do the relatively limit supply of these units I would prefer most
> or at least some stay in the US.
> I'll update the group soon..
>
>
> 73,
>
>
> Glenn WA4AOS
> DSM Labs (dot com)
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-- 
Regards,
Roy

Roy Morgan
k1lky since 1958