HP-23 and other tab mount caps.
wb8mhe at BRIGHT.NET
Fri Nov 19 14:18:44 EST 1999
Brian, et al, I think that Rich Post's suggestion of "potting with
air", and maybe secureing the new axial/radial caps to the inside of
the can with a small dab of hot-melt glue, or maybe a small dab of
silicone bath tub sealant, would be best. I certainly would not use
anything that in any way encapsulated them such that the blow-out
pressure relief plugs were restricted.
wb8mhe at bright.net
From: Brian Carling <af4k at earthlink.net>
To: BOATANCHORS at LISTSERV.TEMPE.GOV <BOATANCHORS at LISTSERV.TEMPE.GOV>
Date: Thursday, November 18, 1999 12:56 PM
Subject: Re: HP-23 and other tab mount caps.
Dick, et al, do you think silicone / silastamer (sp?) type materiual
safer as a "potting compound in such instances, or is there some other
material more appropraite for safety's sake?
Also, my thought is this: Why not just leave the radial caps loose
old can? Does someone fear that they will fall out?!
On 17 Nov 99, at 11:02, Dick Blaney wrote:
> I thought "Bomb Making" was a crime. Is this legal? Potting
> electrolytics completely in an epoxy material could cause a
> explosion, if the capacitor is subjected to raw AC, causing the
> electrolyte to boil, creating very high internal steam pressure.
> That's why the make 'em with rubber "blow-out" valves on the ends.
> Use care.
> 73 de
> Dick, WB8MHE
> wb8mhe at bright.net
> -----Original Message-----
> From: charles w. morehouse <cwmorehouse at worldnet.att.net>
> To: BOATANCHORS at LISTSERV.TEMPE.GOV <BOATANCHORS at LISTSERV.TEMPE.GOV>
> Date: Wednesday, November 17, 1999 5:08 AM
> Subject: HP-23 and other tab mount caps.
> >Fellow Keepers,
> >Hears what I do if can't find a replacement for those tab mounts.
> >1. Carefully remove the capacitor.
> >2. Saw around the base using a fine hacksaw above the hump at the
> >3. Dig out the old and clean up.
> >4. Replace with new radial or axial caps. The new are a lot smaller
> >the originals.
> >5. Pour the can with epoxy and re-install...WALA a new tab mount.
> >Good luck.
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