Re: care and feeding of analog oscilloscope


"Jumpster Jiver" <me@xxxxxxxxxxxxx> wrote in message
news:_GU_e.5842$j_3.109@xxxxxxxxxxx
>
> Wouldn't that coat the entire inside of the scope with dust-attracting
> lubricant?

Naturally, if one isn't careful! I'm not sure about the 'dust attracting
lubricant' though- I find Servisol does't have that effect, the lubicant is
very fine. If it wasn't, it would have the same effect on the switches.

> I would first clean all the switches, controls, selectors, etc. with
> NON-Lubricating cleaner, operate them all several times, then after
> they're all operating better, spray a SMALL amount of switch lubricant
> on/in them

I had the switches in question facing down, so the cleaner drained out.
Obviously it has to be done with care, the object isn't to just dump it all
over the scope indiscriminately.

The scope had already been subject to repair attempts, which had failed, and
it had been auctioned on eBay as a fixer-upper. A few minutes of spraying
and working the switches gave a complete cure. With the thin tube supplied
with the aerosol, it is possible to be very accurate and spray almost all
the fluid through the switches, with very little local contamination.

There's no reason your way of using non lubricating switch cleaner initially
wouldn't work, but if one has to go out and buy switch cleaner, there's
little point in buying two lots for one job.

Dave


.

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