cleaning and rehabbing a tek scope

The first thing Tek service centers did to older scopes was to wash them. Remove side covers, spray with detergent, wash with a strong hose, then bake dry. You could bake in a cardboard box fed by a hair dryer or something, but make sure it's fresh, dry air, not recirculated humidity. You can remove tubes first, and clean them separately in a dish washer, but put each one back into the same socket.

A good contact cleaner works great on scratchy pots and flakey rotary switches. If you wash the scope, use contacty cleaner on all the pots and switches to leave a little anti-corrosive film.

The 585 was an impressive beast. The distributed-deflection CRT is a work of art. I prefer the 547, personally, for shear electronic beauty.

John

Washing the scope completely. The yahoo group has some nice articles, or you can buy the book that is recommended there.

For schematics, manuals: bama.sbc.edu and it's mirror site(s).

hth, Andreas

Thanks for the hints. I think I might skip taking out all the tubes based on some advice I have received, but the other contacts are definitely in for a wash.

Since I need a 1A7 amplifier plug in, which was made for the 54x series, I am now looking for an 81 or 81 adapter and the plug in, which complicates things.

Has anyone hauled this vintage box into a diy car wash on the original cart? It would make a great photo. Maybe I will do that.

That has been brought to my attention now, and is already become a source of help. Thanks!

I wouldn't use a pressure washer, especially not the one at the car wash. The blast is WAY too hard. I wouldn't spray it any harder than, say, a shower head, or even that sprayer thing in the kitchen sink.

And don't _bake_ it dry! BLOW it dry! Use clean, dry, unoiled compressed air - _then_ let it drip-dry or use warm air. Even distilled water can leave water spots if you leave drops behind - the water absorbs crud from the air, and deposits it when it evaporates.

Good Luck! Rich

I'd be seriously concerned about leaving any water in the HV multiplier section.

John