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My approach to this sort of problem (I’ve done it twice in the past thirty or so years) has been to use an Xacto knife to cut the potting compound away. I never did find a solvent that seemed to

Just a thought: I wonder if there are TM500 modules which are particularly picky on correct functioning of the mainframe. Such a module would - use all or most of the interface - show malfunction

I guess the point I was getting at but missed, was that it was labeled as containing acetone, but nothing else.? I try to stay away from beauty products (they wouldn't help me- hahaha!), but when it

Also xylene. Be careful of MEK, it will dissolve rubber gloves. -- Richard Knoppow dickburk@... WB6KBL

Dennis, A chemist friend once told me to try Dichloromethane. I have successfully unpotted two assemblies using this. First, it is nasty stuff, I put the part and the Dichloromethane in a glass jar

Yup. Some nail polish removers use acetone. Some removers use ethyl acetate or MEK or both. Remember MEK is used in the "glue" that plumbers use to solvent weld together plastic pipe.... in other

Hi Dennis: I couldn't remember... but finally did. There is the defacto go to FAQ... for "gas laser tube nuts" called "Sam's Laser FAQ" ... there is good bit of information about He-Ne laser power

I've found that nail polish remover can have weird stuff in it (besides the obvious dyes and fragrances) that pure acetone doesn't.? Last summer I poured half a bottle into the plastic tub of a

To wrap up my PS cap replacement: I replaced all 5 power supply filter caps. See thread above for details on replacements. I spent a couple of afternoons carefully pulling old supply caps. With all

My FG503 has one Bourns pot (Frequency adjust) that is riveted closed, and two AB brand 'ModPot' pots that are held together with small flathead screws. I've had good success in opening those up and

6. B072023 2020-Nov-15~30: Broken Trace The last trace's broken into two traces:1st half of last trace and 2nd half of base trace. </g/TekScopes/photo/255563/24?p=Created,,,100,1,0,0>

Just a quick note, I have updated the files yet again for those who have downloaded them in the past. I added cutouts to the card edge connector to ensure full compatibility with mainframes that may

Gasoline is worse, but... MEK is listed as a precursor... but a lot of industrial chemicals are precursors... and despite being listed... it produced, and used in vast quantities, in the U.S. Model

My first experience with MEK was in early 1966 in the Navy,I spilled some on my belly, It burned like fire, buy the time I got my pants down to wash it off it was gone, just a patch of very white skin

Hi Dennis: If it is some kind of epoxy, then acetone dissolves it better then MEK. Cured epoxy resins, like moulded parts, can be exposed to MEK... and show "fair" resistance. (MEK will eventually

MEK is really nasty stuff and a precursor to methamphetamine, from what I understand.? A funny but horrifying story about MEK came from a coworker.? Seems a coworker of his years ago wanted some of

Please include me in the list as "JF" since I meet the above qualification as, not identified by full name and some limitation. I'll send you and email now so you know who I am. Thank you sir.

If the heat gun can melt epoxy resins, it may be hot enough to melt other plastics - like the insulation on wires (unless it's Teflon or silicone - which it may be in an HV supply). There are quite a

Breaking down epoxies at room temperature has often come up here and in the hpagilent group. My standard answer is Dimethylformamide, but other solvents can do it too. It's a messy process and some

It is also extremely smelly. Work outdoors or with fume exraction, or at least seriously good ventilation. EJP