[ARC5] Aligning BC-453-B. (Solved) Benefit from repairing a 'junker' (long)

[Mike Hanz]

This is true.  The revamped R-23-A/ARC-5 navigation receiver was the 
first of the AN/ARC-5 sets to get it (though it may not have received it 
in the first tranche of production.)  I know for a fact this is true 
because I read it on my website, and as we all know, everything we read 
on the internet is true. :-) The BC-453-B is less clear, but it may have 
been part of a general updating of both the two nav receivers to improve 
performance.

That doesn't explain the component aging aspect you mention, of course.

73,
Mike  KC4TOS

On 1/30/2015 10:52 AM, Bruce Long via ARC5 wrote:
> i have a vague memory of something i read - perhaps here- that in American electronic equipment the transition from rubber-cotton insulted wire to plastic insulated wire occurred during WW2 encouraged to a large part by fungus rot induced equipment failures suffered by the first electronic equipment shipped to and used in the south pacific.
>
>        From: DSP3 <jeepp at comcast.net>
>   To: arc5 at mailman.qth.net
>   Sent: Friday, January 30, 2015 9:39 AM
>   Subject: Re: [ARC5] Aligning BC-453-B. (Solved) Benefit from repairing a 'junker' (long)
>     
> Tangential to the ongoing discussion, might someone tell me when the
> transition to plastic wire came about?  I find that these sets are
> infinitely easier to troubleshoot and trace issues and that components
> are (surprise...surprise...) relatively in-spec.  I find few resistors
> way out in "plastic wire" units that are found in good physical
> condition.  It may well be that its _all_ attributable to age.  Still,
> there is a clear transition....