[AMRadio] BC-610

[Mel Farrer]

I like the idea of changing the bolts.  Here is what I would do. Remove the bolts after getting the mod warm, saturate the laminates then quickly put back the new hardware so that the laminates are squeezed and the varnish should migrate better into the laminates.  Great suggestion on the hardware.

Mel, K6KBE



________________________________
 From: Geoff <w5omr at w5omr.com>
To: Discussion of AM Radio in the Amateur Service <amradio at mailman.qth.net> 
Sent: Saturday, November 19, 2011 3:25 PM
Subject: Re: [AMRadio] BC-610
 
On 11/19/2011 5:15 PM, Rick wrote:
> Thanks, Mel.. That I did not try and it makes a lot of sense. I'm gonna kick
> myself if after all this time it is solved so easily.
>
> ...wonder if that would work on the XYL? HI..HI...
>

Paten it and sell it if it does  ;-)

Something else, Rick - replace those old screws and nuts with bolts and 
nuts.
The mil-spec way of securing fasteners is (from the surface out) flat 
washer, lock-washer nut (or bolt, depending)

Sometimes those old screws get rusty with age, and lose their tinsel 
strength.  Replace the old hardware with stainless steel new hardware, 
and use bolts instead of screws so you can put some /torque/ on 'em!  
Possibly a slim metal plate to go between bolt holes for added extra 
strength to get the laminations tighter.

Just another idea.

Story goes that Gene White/WA5ATH (sk) had a 'talking' modulation 
transformer.  It was suggested he operate the thing while it was 
submersed in transformer oil.  Ol' Gene thought that was a good idea, 
and got an ice chest and poured oil in it.  That cured the talk-back, 
but Gene, being the frugal guy he was, use a styrofoam ice-chest and 30W 
motor oil.  About once a week, he'd have to 'check the dipstick' on his 
modulation transformer.  ;-)

It was a different time, back then.  There weren't the 'purists' then, 
like there are now.

73 = Best Regards,
-Geoff/W5OMR


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