[R-390] Cleaning

[Bob Camp]

Hi,

I totally agree that kerosene is a good solvent. It seems to be a reasonable
way to go for the gear clean process.

My only argument (this being the R-390 list after all ...) is with the thin
film of stuff you seem to get after the cleaning process. Even if you don't
put oil in the mix kerosene seems to leave a film.

The film acts as a dirt magnet. We shut off the class 100 clean room here at
the West Redding R-390 palace a while back. The net result is a radio that I
have to go back and touch up again in a year or two.

How about a kerosene and lube soak / clean followed by a quick alcohol dunk
? The alcohol should take off the film but not have enough time to soak into
the split gears and take out the lube.

Just a thought.

    Take Care!

            Bob Camp
            KB8TQ