I Have asked the same question of my radio club members and have gotten suggestions to use Windex followed by water spray rinse on chassis (this is the best I have heard) and also using a dishwasher (I kid you not!) followed by a low oven drying cycle (eg 250F) with the chassis wrapped in a towel. I have been cautioned about using alcohol because it may dissolve varnish and color codes from components. High heat will melt wax components. Good Luck Nick
T.
:I just got an RCA model 1 tube radio that was stored in a very dirty location for about 20 years and it is filthy. I used my shop vac to get rid of most of the clumps of dust, but the chassi and the cabinet still have a lot of deep soil. I usually use soapy warm water to clean radios, but this one may need some more serious methods. Any good suggestions are appreciated.
Thomas