11-12-2014, 01:37 PM
I would say, replace tube caps with tube caps, no need to search for backelite blocks and restuff them, just do those that remain to have some authentic looking parts, but even that is optional. I restuff what I can, or rather what's there.
Same goes for tin can caps. They are easy, the guts are not tarred or glued; once you bend out the tabs, the innyrds simply come out, and so I restuff them using the same fish paper inside, without any potting.
Oh....tone control. Also caps, potted. Comes out easy. Reuse the fishpaper, replace caps. There have been threads describing how to do it (I wrote a couple myself).
As for the tuning caps, soak it in hot water and dishwashing liquid, brush it with some long soft brush.
Then dry it at room temp, you won't need it back fast and by the time you do, it will be fully dry.
90 is not a bad radio to restore at all, much easier than 20 due to no potted parts.
Same goes for tin can caps. They are easy, the guts are not tarred or glued; once you bend out the tabs, the innyrds simply come out, and so I restuff them using the same fish paper inside, without any potting.
Oh....tone control. Also caps, potted. Comes out easy. Reuse the fishpaper, replace caps. There have been threads describing how to do it (I wrote a couple myself).
As for the tuning caps, soak it in hot water and dishwashing liquid, brush it with some long soft brush.
Then dry it at room temp, you won't need it back fast and by the time you do, it will be fully dry.
90 is not a bad radio to restore at all, much easier than 20 due to no potted parts.
