Not sure if any of the threads have mentioned this, but I like the DeOxit Pen.
I think it is lower concentration, and works espcially well on tube pins.
Mark
N5KAE
>
>From: "scpmil...@aol.com" <scpmil...@aol.com>
>To: drakelist@zerobeat.net
>Sent: Sat, December 24, 2011 8:55:37 AM
>Subject: Re: [Drakelist] problem with deoxit
>
>I have an HP VTVM and when I first got it, the range switch seemed erratic. I
>made the mistake of liberally applying De-Oxit to the switch and boy, it got
>really erratic after that. It took 2 or 3 days of leaving it outside in the
>summer sun to get the switch to dry out and it's been great ever since but a
>very little bit goes a very long way.
>
>I learned about De-Oxit from an HP service guy only back then it was called
>Cramolin and came in a small bottle as a liquid. He would take a wooden
>Q-Tip,
>dip it in the bottle and brush it on computer card edge contacts, and then
>wipe
>it off! He claimed you only needed the very thinnest of films to insure a
>good
>contact. I thought he was BS'ing me but have since learned my lesson.....
>
>Steve KD2ED
>
>In a message dated 12/23/2011 10:19:00 P.M. Eastern Standard Time,
>wa2...@gmail.com writes:
>In addition to the "wooden stemmed tightly woven Q tips that are
>made especially
>for electrical cleaning" mentioned by Dennis, AE6C, I also use the brushes
>listed below. A drop of DeoxIT on either goes a long way.
>>
>>
>>These brushes are great for cleaning 7 & 9 pin tube sockets:
>>http://www.gumbrand.com/interdental-brushes/products/gum-go-betweens-proxabrush-cleaners-wide/872rn/
>>
>>
>>
>>These brushes are good for cleaning RCA connectors, 8 pin and other larger
>>tube
>>sockets, etc:
>>http://www.mcmelectronics.com/product/CAIG-LABORATORIES-AB-50-/200-288
>>
>>
>>Ken
>>WA2LBI
>>
>>
>>
>>On Fri, Dec 23, 2011 at 13:06, Dennis Monticelli
>><dennis.montice...@gmail.com>
>>wrote:
>>
>>I have found that 100% DeOxit dries more slowly than the 5% stuff
>>>because the latter is mostly carrier. So allow a little extra time
>>>before powering up, especially with pots. A few hours should have
>>>been enough, so it seems that you applied too much. I almost always
>>>use the 100% stuff but I avoid droplets. Instead I apply the DeOxit
>>>to one of those wooden stemmed tightly woven Q tips that are made
>>>especially for electrical cleaning. The Q tip then does double duty
>>>of applicator and scrubber. This works really well for wafer switches
>>>and tube pins. For socket pins, I use a wooden toothpick that is
>>>coated with DeOxit. Once again it serves as applicator and scrubber.
>>>The Q tip and toothpick end up with a satisfying dark coloration of
>>>oxides with this method. Sufaces will glisten after cleaning but you
>>>won't see any red pooling.
>>>
>>>With DeOxit a little goes a very long way. Mild scrubbing with a
>>>rough absorbant surface such as wood or tightly woven Q tip physically
>>>removes the dissolved oxides.
>>>
>>>Dennis AE6C
>>>
>>>
>>>
>>>On 12/23/11, y...@aol.com <y...@aol.com> wrote:
>>>> Today I put a totally dead R-4a on the bench,replaced the fuse and off she
>>>> went. The rig was fairly clean considering its age. The rig lit up and got
>>>> some audio out and all functions seemed to basically work. Cleaned the
>>>> chassis of dust ,damp cloth and proceeded to pull all the tubes and
>>>> test,all were good. I took a emery board and cleaned all tube pins then
>>>> wiped the pins with Deoxit and dried with a cloth, also cleaned all the
>>>> wafer switch contacts with deoxit,using the tiny needle bottle being VERY
>>>> careful to keep the deoxit to the very small amount, also cleaned all the
>>>> pots with the deoxit spray for pots.
>>>> Any way let the rig sit for a few hours working all the switch's and
>>>> pots. Reassembled the rig and powered up. The radio lite up and that was
>>>> about all ,nothing seemed to work, rechecked the tube install,all correct,
>>>> put back on the bench flipped the rig over and ALL the tube sockets and
>>>> wafer switch's looked like they were flooded with deoxit. I was careful to
>>>> use as Little as you could of the deoxit,while cleaning everything. I then
>>>> proceeded to clean EVERYTHING with 100 %alcohol, tube pins,sockets, all
>>>> wafer switch's and pots,made sure everything was dry, using a hair drier.
>>>> Put the rig back together and turned on,the R4A works as well as my B line
>>>> receiver,even without a alignment.
>>>> Has there been a change in Deoxit? I have used this procedure on lots
>>>> of Boat anchors and up till now always worked fine. Can't believe the TINY
>>>> amount I used, crawled all over everywhere I didn't want it to go. Unless
>>>> someone else had used some other substance to clean before me and the the
>>>> deoxit ,I haven't got a clue. Anyone else run across anything like this?
The
>>>> deoxit was brand new a week ago. I think I will star with the 100%
>>>> alcohol,like I used to use.
>>>> everybody have a Merry Christmas
>>>> dale wt4t
>>>>
>>>
>>>
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>>
>>
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