I picked up some paint to redo my cases today. It's Rustoleum "Lagoon".
Here's a test spot with normal house lighting:
Now under white LED lighting:
It doesn't look anywhere near that blue in person. The other option was Krylon's "Jade" but I thought it would be too green.
Personally, I kind of dig the color; sets it apart from Tektronix gear, so I might go with it, even for the units I resell.
In other news, that new OpAmp will be here today, so I need to get the front back on the 2020B!
I took it off to really clean and test the switches and pots. I tested the switch bank, with a four wire lead hooked up, I went through the entire range from least significant decade up. With the switches set to 9.99[10] I got 10.00001k on my 6.5 digit HP '57A. Not a signal damn resistor was out. After 35 years!
I also took the current pot/switch and vernier apart, scrubbed them out good, relubed with WD-40's White Lithium Grease (that stuff is amazing; you spray it and it "drys" into a normal film of lithium grease), then used DeOXIT Shield to protect the wiper contacts.
The switch portion of the current pot got sprayed with WD-40 Silicone Lubricant and the contacts cleaned and shielded with DeOXIT.
What do you guys think for the moving parts of the switch banks, lithium grease or silicone lubricant?
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