[Boatanchors] Capacitors

[WA5CAB at cs.com]

A much better method is to remove the canned capacitor, open up the bottom 
crimp, pull out the contact plate, and re-stuff them with new ones.  Radial 
lead types are pretty much worthless (if you care what your work looks like) 
for under chassis replacements but work quite well for re-stuffing cans.  I 
did about 20 of them last year in a PP-351.  Aside from the silicon bridges 
in place of selenium (and the fact that it works quite well 56 years on), 
no one would know that I had ever been into it.

In a message dated 08/15/2011 23:31:41 PM Central Daylight Time, 
gzook at yahoo.com writes: 
> Where are you pricing capacitors?
> 
> Mouser has the 150 volt one for well under $1.00 and the 450 volt one for 
> not much more!
> 
> Now they are not in the old chassis mount cans.  However, just cut the old 
> one loose and leave it in place on top of the chassis and put the new one, 
> which will be MUCH smaller, under the chassis.  That way the "looks" will 
> be the same.
> 
> Also, the newer capacitors are of better quality and much closer to the 
> design value in tolerance than the original capacitors.
> 
> Can type capacitors are pretty much a special product these days which is 
> why they cost so much.
> 
> Glen, K9STH
> 
> Website:  http://k9sth.com
> 
> 
> --- On Mon, 8/15/11, telegrapher at q.com <telegrapher at q.com> wrote:
> 
> Why are electrolytic capacitors so expensive?  Even the newer Aluminum are 
> out of this world.  I am looking for a 20 @ 450V and a 50 and 150V.  One 
> is $17 and the other is either $25 or $38 for single quantities.  Almost to 
> expensive to fix and sending them in to Hayseed would run around $30 ea 
> also.  This is for a real nice Gates Modulation Monitor with a pair of nice 
> big meters on the front, one for reading transmitter on or off frequency 
> values and the other is for modulation.
> 
> I have not determined that they existing caps are bad but as they are 
> probably 40 plus years old, why not fix them now instead of having to pull the 
> thing out of a rack to redo later.
> ______________________________________________________________
> 

Robert & Susan Downs - Houston
wa5cab dot com (Web Store)
MVPA 9480