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Old 27th May 2021, 3:47 pm   #25
blackaddler
Triode
 
Join Date: Feb 2015
Location: Addlestone, Surrey, UK.
Posts: 14
Default Re: Masteradio D517/VHF Skymaster

Going back to my original Skymaster, I've started checking the capacitors. A bit of a mixture, as Volstatic replaced a couple for me, back in the early 70's.

Pic 1 shows the 4 caps, 2 of which are the original 10v 400uf Elkomold B1s.

One replacement is the large grey 25v 500uf cap marked RS. I tested this at 600uf.

The other is a Sprague 25V 500uf, which tests at 597uf.

When I checked the board, I realised that the Sprague had been installed the wrong way round!

Should it matter with this particular cap?
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