[R-390] New Electrolytic Capacitors for R390A

[Barry]

No, just a small manual mill (actually two of them since I didn't quite
finish everything the first time around).  Truthfully, the internal reliefs
could be almost eliminated.  The capacitors could be pushed in place, but I
didn't want to have any stress on them.  If I pull the outer plastic
(vinyl?) sleeve off of them, I think they would fit nicely but I wasn't sure
if that was a good thing to do to them.  The outer relief needs to be there
to clear the standoff, though.

One thing I didn't mention is that in order for the relay plug to fit
properly, I had to shave the spline off the center thingee so that they
would fit parallel and perpendicular to the chassis.  The aluminum casings
would not clear the other nearby components if you plug them in with the
spline properly aligned.  Assembling them the thing the way I did makes it
obvious which way the things are to be plugged in, but if you ever take them
apart, you have to watch to align everything back the way it should go
together.

One other thing to note.  I think if I got the type of capacitors with
radial leads coming out both ends and stack them like others have done to
rebuild the round cans, the internal clearances would not be necessary
either; however, it would dictate a slightly taller can.

Thanks for the comments.

Barry - N4BUQ

----- Original Message -----
From: "Tracy Fort" <beerbarrel at cox.net>
To: <R-390 at mailman.qth.net>
Sent: Sunday, October 30, 2005 10:28 AM
Subject: RE: [R-390] New Electrolytic Capacitors for R390A


> Did you use a CNC machine Barry?
>
> -----Original Message-----
> From: r-390-bounces at mailman.qth.net
> [mailto:r-390-bounces at mailman.qth.net] On Behalf Of Barry
> Sent: Saturday, October 29, 2005 11:04 PM
> To: R-390-List
> Subject: [R-390] New Electrolytic Capacitors for R390A
>
>
> Gents,
>
> A few months ago, I mentioned the idea of building some new capacitors
> from an octal relay plug and some miscellaneous aluminum pieces.  I
> finally finished the project.  See the following link for some brief
> details and pictures.
>
> My goal was to use modern parts that are available and no modifications
> to the radio.
>
> http://members.aol.com/n4buq/r390a/
>
> Enjoy.
>
> Barry - N4BUQ