[Collins] Unsoldered connections Was: Re: Re KWM2A V13

[Al Schapira]

On a 30L-1 that I restored (and am still using) there was an unsoldered
FILAMENT connection on one of the 811A's.  It did have the red glyptol
on it!  See pictures at

http://mysite.verizon.net/a.schapira/30L-1/pict0040.jpg
http://mysite.verizon.net/a.schapira/30L-1/pict0042.jpg

	-Al, W2ADS

More collins restoration & etc at http://mysite.verizon.net/a.schapira/


On Sun, 2012-02-19 at 11:27 -0500, Glenn Little WB4UIV wrote:
> At 11:54 AM 2/16/2012, Jim Whartenby wrote:
> >Interesting observations by Rick.  Just goes to show that a thorough visual
> >inspection is always in order.
> >
> >A few questions for those in the know:
> >Just how was the assembly line at Collins organized?
> >One did the mechanical assembly, soldering and then did a self inspection?
> >Another did the final inspection?
> >Who then applied the witness stripe to show that the solder joint 
> >was inspected?
> >
> >It would be interesting to know if the unsoldered joint  had a witness stripe.
> 
> Many years ago there was a surplus house in Charleston, SC.
> I found a KWM-2A chassis that looked like it had been run over by a bull dozer.
> While salvaging what parts that were still usable, I discovered why 
> the radio was scrapped.
> On a tube socket, there was a very well made mechanical connection.
> The problem was that there was no solder, but, there was red paint 
> (witness stripe), as on all the other connections, indicating that it 
> had been inspected.
> 
> I have seen the same on GE radios as well as Motorola radios.
> 
> Just shows that we are human and the well skilled technician will get 
> the bargins.
> 
> 
> >Was the tube socket turret populated and mated to the wiring harness 
> >before it
> >was integrated into the chassis?  Things were so tight in the 51S-1 when I
> >replaced capacitors, I found it difficult to mount components and solder them
> >without causing some minor damage to other wires and components close by.
> >
> >As I replaced components in the 51S-1, I also found broken ground 
> >connections on
> >at least two coax cable shields.  I don't remember finding any unsoldered
> >joints.
> >Jim
> >
> SNIP
> 
> 73
> Glenn
> WB4UIV
> 
> 
> 
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