On 20.01.25 06:37, dewaj wrote:

> By the way, tv tuner cleaner/lube is useful for much more than tv

> tuners.

Nearly 50 years ago, the professional contact cleaner we used was

"Kontakt 60". It is still available, and RS has a datasheet:

https://docs.rs-online.com/06ad/0900766b8131ebda.pdf

The "oxide dissolving" claim has always seemed ambitious, but the stuff

works well, so what the heck.

I've used cheaper, more locally available contact cleaners in the

interim, and they have sufficed. If nothing else were available, I'd

even give WD40 a go, but it's a water displacer, not an oxide remover.

(And I haven't actually tried it.)

Application has always been by poking the aerosol can's long thin tube

into the connector and giving the contacts a generous squirt to flush

out any particulates, and wash off any accumulated organic gunge.

Contact cleaner spraycans usually also fixed noisy carbon track volume

control potentiometers, again with a good physical flushing of the

problem carbon granules.

Erik

P.S. The double spacing may result from pasting unspaced 72-character lines from Vim into the web mail client. (Most lists preferred a 72-wrap in decades gone by, as that can be quoted yet stay within 80 characters.) This PS, just typed into the web dingus will doubtless be flowed, so single space, but would have elicited howls of protest in the good old days. Whatever. It is what it is.