[GreenKeys] 88 mh toroids

[Rokumon Cat]

I last bought rottenstone and whiting at a sherwin williams paint store. The whiting will draw excess oil (particularly that nasty old military oil) right out of a gunstock. Mix a thick mush of whiting with methanol, smear on gunstock to a depth of about half an inch. Place in dark corner of shop, forget for about six months, remember it after six months, the "whiting" will now be a disgusting shade of mouse oil grey. Scrub off with stiff nylon brush, wipe with solvent (I use mineral spirits) and proceed to refinish gun stock. Do not use this on valuable pieces, just run of the mill gunshow ex-mil finds that are so nasty one does not like to even hold them in your hands.
 
Same store also had rottenstone. I could not tell you if they still carry these any more, this was over twenty years ago.
 
Joe

--- On Fri, 6/17/11, Lee Mushel <herbert3 at centurytel.net> wrote:


From: Lee Mushel <herbert3 at centurytel.net>
Subject: Re: [GreenKeys] 88 mh toroids
To: kf9nz at juno.com
Cc: greenkeys at mailman.qth.net
Date: Friday, June 17, 2011, 7:40 AM


Gentlemen,

There was a time when 88mH toroids were obtained from the United States 
principal source: Elliott Buchanan.   Many small packages went between his 
QTH and mine!   And I certainly do remember how to "unpot" those assemblies!

But today I would hope that folks would utilize digital signal processing to 
accomplish the filtering for which  those toroids played such an important 
part!

But if you want to experience some "old activities" I would say that you 
should start with one of the "standard tests of achievement" of the time: 
build a terminal unit inside a polar relay case!   I probably could find 
such a thing around here someplace.

But no shellac.   Nor could I find pumice or rottenstone at the local orange 
big box store the last time I tried.....

73

Lee   K9WRU
----- Original Message ----- 
From: <kf9nz at juno.com>
To: <greenkeys at mailman.qth.net>
Sent: Friday, June 17, 2011 7:13 AM
Subject: [GreenKeys] 88 mh toroids


>        One of my sons-in-law is a cable splicer for AT&T.  Some time
> back he gave me a huge plastic closure full of loading coils.  I have
> only partly tried to get the thing open, and it looks like a lot of work
> to recover the toroids. They are potted.   I have been putting off that
> project for over a year now.   Anyhow, we stopped by his house to see the
> grandkids a few days ago, and he handed me a small cardboard box.  In it
> were eight brand new 88 mh toroids.  Two are mine, but anyone wanting one
> or two, it's first-e-mail-first-shipped until 6 are gone.
>        Anybody want to explain what these are for to those who don't
> know about shellac either?
> Frank
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