[R-390] What I did on my winter vacation

[Cecil Acuff]

I got em unpacked with no problem but when I drilled out the aluminum pieces 
in the base the tap wouldn't cut threads because the aluminum was so 
soft....it just augured out.  I ended up driving the pins out from the 
bottom and considered pressing the octal base pins in their place but was 
struck with the idea of just plugging the caps with the octal base pins into 
the socket and covering the whole thing with the cap shells.

Cecil....
----- Original Message ----- 
From: "tfrobase" <tfrobase at kitparts.com>
To: <R-390 at mailman.qth.net>
Sent: Saturday, January 14, 2006 4:50 PM
Subject: RE: [R-390] What I did on my winter vacation


>I use a jewelers saw to cut the can, but like your pipe cutter approach.  I
> then heat the upper area severed aluminum can with a propane torch,  just
> enough to soften the goo and then pull the bottom out with the pins
> attached.  I make the cut just above the crimp to the octal socket.  I 
> have
> used this process numerous times with consistent results ... Tom, N3LLL
>
> -----Original Message-----
> From: r-390-bounces at mailman.qth.net [mailto:r-390-bounces at mailman.qth.net]
> On Behalf Of odyslim at comcast.net
> Sent: Saturday, January 14, 2006 2:31 PM
> To: r-390 at mailman.qth.net
> Subject: [R-390] What I did on my winter vacation
>
> So Far, I re-built 14 multi-section capacitors. I did my project pretty 
> much
> the usual method everybody uses with only a couple of changes. I used a
> large tubing cutter and made precise cuts along the bottom of the can.
> After removing the can from the base, I screwed in a 3 1/4" long eye-hook
> with 1/4 thread diameter all the way into the center of the muck.  I then
> made a loop out of 1/4"  parachute cord about 3 1/2 ft diameter.I Put the
> can in my vise with just enough overlap on the jaws of the vise to keep 
> the
> can from slipping through. After that, I attached the loop of cord to the
> eye-hook, put my foot into the loop and pushed down. Like starting an old
> Harley. The entire contents of every can popped right out. I then drilled
> the pins out in the usual way. This was a good excuse to buy a nice bench
> top drill press since I had 14 to re-build. I then did the standard 4-40 
> tap
> job and installed the brass screws and finally soldered in the caps. I did
> try a new ( to me ) ite  m I discovered called alu-weld with poor results.
> The heat from the torch melted the base of the caps before the alu-weld
> would solder the cans. Therefore I used  JB Weld.
> I was installing quad 20 FP type cans to replace the older caps but 
> decided
> I would like to return the radios back to the original appearance. It made 
> a
> good winter project but did not last long enough. Now I guess it's shack
> cleaning time :-)
>
> Scott W3CV
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