[ARC5] Old Dynamotors- Don't be a DooFuss Like Me....

[Richard Knoppow]

----- Original Message ----- 
From: <wb3fau55 at neo.rr.com>
To: "David Stinson" <arc5 at ix.netcom.com>; "Todd, KA1KAQ" 
<ka1kaq at gmail.com>
Cc: "ARC-5 List" <arc5 at mailman.qth.net>; "milsurplus" 
<milsurplus at mailman.qth.net>; "Military Radio Collectors 
Association" <mrca at mailman.qth.net>
Sent: Monday, April 01, 2013 12:48 PM
Subject: Re: [ARC5] Old Dynamotors- Don't be a DooFuss Like 
Me....


> this  is very  true Todd.  But  not  a problem with those 
> sealed transformers.  Other  problems  with
> these.  The insulation still goes bad.  Russ.
>
    At Hewlett-Packard we had problems with washing 
equipment with hermetically sealed transformers and chokes 
because if the seal was not quite perfect some moisture 
could get in but would not leave with normal baking out. 
Normal baking was done in a temperature controlled, 
ventilated, oven at 130F. Minimum was 48 hours but I liked 
to leave stuff in for a week when possible.  Open frame 
transformers and chokes would dry out fine.


--
Richard Knoppow
Los Angeles
WB6KBL
dickburk at ix.netcom.com