Dan Walker
CVRS Member

Hello Les;;;;
I checked my RCC disk under cross reference and found that the chassis type 75
is listed as the ”Eton” and the ”Harrow.
It seems to me that I did have this same problem quite a while ago,, with Rogers and DeForest Crosley radios,
but I don’t remember how I solved it.
If I get any more information I will pass it along to you. This one sold in Calgary in 2013

It is unusual that the radio only has three knobs.
Dan in Calgary