On 3/5/2023 2:55 PM, David Stinson wrote:
Hmmm...
Looks like a couple of shots of WD-40 and
a little elbow grease and this meter should be good to go!
https://photos.app.goo.gl/5pJWQMsLzSvTiVTG7
(RA-42 power supply for BC-639)
On the bright side, the scale looks pretty clean...
But I may have you beat with this one from a 1936 BC-307-A - I've
been afraid to remove it from its case:
