score!
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- Posts: 1186
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score!
A 1937 Bausch & Lomb refractometer. Have downloaded sdpecs and instructions. It is truly dirty and grimey. Any idea how to clean it?
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Re: score!
Greg,
I always used the grocery store 70% isopropyl alcohol
and some glasses Lens cleaners tissues also from grocery store
and need a toothpick or metal tweezers or pick if you could be careful to rub the tissues in tight places.
try to use wood like a tooth pick.
I also don't take things too much apart. Clean without much disassembly, then use it to see if that is needed to be done.
I always used the grocery store 70% isopropyl alcohol
and some glasses Lens cleaners tissues also from grocery store
and need a toothpick or metal tweezers or pick if you could be careful to rub the tissues in tight places.
try to use wood like a tooth pick.
I also don't take things too much apart. Clean without much disassembly, then use it to see if that is needed to be done.
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- Posts: 1186
- Joined: Tue Oct 20, 2020 6:44 am
Re: score!
Thanks. I'll try those things
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- Joined: Mon May 16, 2022 3:44 pm
Re: score!
Did you make that rubber powered Fokker?
As for cleaning your scope, I'd use %96 ethanol and cotton rags on anything not transmitting and reflecting light. Isopropyl alcohol always seems to just smear films around. Also, if you're serious about a total dismantling and thorough cleaning, I'd spray thread loosening fluid into all screws, periodically, over a few months. Ancient grease seizes into a fairly stiff polymerized gum that makes screw extraction extremely risky.
As for cleaning your scope, I'd use %96 ethanol and cotton rags on anything not transmitting and reflecting light. Isopropyl alcohol always seems to just smear films around. Also, if you're serious about a total dismantling and thorough cleaning, I'd spray thread loosening fluid into all screws, periodically, over a few months. Ancient grease seizes into a fairly stiff polymerized gum that makes screw extraction extremely risky.
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- Posts: 1186
- Joined: Tue Oct 20, 2020 6:44 am
Re: score!
I asked Bausch &Lomb for info. They sent me instructions for cleaning their 2024 electronic refractometer. Bummer.