[Central-Electronics] PS-2 cap temps

Jon Kannegaard k6jek at comcast.net
Sun Mar 27 01:17:42 EDT 2022


I’m refurbing a PS-2. Luckily I have a high precision LCR meter (Stanford Research SR 720). As I find pairs of caps to meet the .1% tolerance band should I be heating them up? I’ve been measuring them at room temp but it occurs to me they live in a warmer environment inside the transmitter. I really don’t know the temperature characteristics of silver micas so I wonder if this would make much difference,

I also wonder what they did back in Chicago all those years ago. I think the process might be described in Nick Tusa’s new book but I lent my copy out.

Jon, K6JEK






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