Paul -
I'm sure it has a recommended shelf life, but the bottle I just finished off (about 1/4" in the
bottom) is at least 15 years old and still seems to clean just fine. I always keep it capped.
Actually the only problem I had with it was that the bottle became 'deformed', i.e., pushed in on
one side, so I couldn't get much pressure on it!
Yeah, we used Freon TF in spray cans at NASA 40 years ago. Really did a nice job on just about
anything from PC boards to machine parts, and left NO residue or film or anything. Course I don''t
guess we did the ozone layer any good either... :-)
73, Garey - K4OAH
Glen Allen, VA
Drake 2-B, 2-C/2-NT, 4-A, 4-B, C-Line
and TR-4/C Service Supplement CDs
<www.k4oah.com>
Paul Christensen wrote:
Garey,
Your purchase is definitely the better value although I'm not sure if DeOxit has a shelf life?
Come to think of it, is there a shelf life for most of these products? I have cleaners on the
bench that are now 15+ years old!
Where do you find the Chemtronic stuff.
For the past 20 years, I've been purchasing the Chemtronics cleaners & lubricants through Mouser
and Newark. The first Chemtronics product I used as a teenager was "Tune-O-Wash," sill made today
but is now EPA compliant. That product worked better than most for electro-mechanical TV tuners
and would not de-tune the circuits. Getting a bit off topic here, but I once tried the RadioShack
tuner cleaner/lubricant and never could get a tuner back in alignment. God only knows what
semi-conductive fluid they used. This was in the mid '70s.
Paul, W9AC
----- Original Message ----- From: "Garey Barrell" <k4...@mindspring.com>
To: <drakera...@yahoogroups.com>
Cc: "Paul Christensen" <w...@arrl.net>
Sent: Saturday, October 08, 2011 4:27 PM
Subject: Re: [DrakeRadio] Re-capping an R-4
This is what I use.....
*http://tinyurl.com/45yqnfd*
73, Garey - K4OAH
Glen Allen, VA
Drake 2-B, 2-C/2-NT, 4-A, 4-B, C-Line
and TR-4/C Service Supplement CDs
<www.k4oah.com>
Paul Christensen wrote:
And here's the same 100% solution the D100S spray:
http://tinyurl.com/3jqhxk2
Paul, W9AC
----- Original Message -----
From: Paul Christensen
To: drakera...@yahoogroups.com
Sent: Saturday, October 08, 2011 2:16 PM
Subject: Re: [DrakeRadio] Re-capping an R-4
Don,
I recently made a purchase of the 2.4 ml bottle for $15 through Amazon. I combined it with
some other solvents and shipping was free.
I've stopped using DeOxit on wafer switches and now pretty much limit its use to pots/faders.
I have not had any trouble with DeOxit on wafer switches, but I've seen evidence of the
dirt/dust it attracts over time.
So now, I'm using several fast-evaporating Chemtronics sprays and the results have been just
as good as DeOxit on open switches. For example, I recently purchased a Collins 75S-3C and the
band switch was so intermittent, I thought it was broken. I used the Chemtronics spray developed
for switch contacts and the bandswitch operates like new.
Paul, W9AC
----- Original Message -----
From: Don Cunningham
To: drakera...@yahoogroups.com
Sent: Saturday, October 08, 2011 2:01 PM
Subject: Re: [DrakeRadio] Re-capping an R-4
Garey,
Where did you find the D100L DeOxit?? I need to get a bottle (even if it hurts) as I am
getting stocked up to do a BUNCH of rigs this winter. Hope my ambition holds out. I've been
helping Hayseed's sales, HI.
73,
Don, WB5HAK
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