Radford amplifier chassis refinishing?
Not being at all well versed in the art of metalwork, I’d greatly value the wisdom of the forum in respect of the chassis of a Radford amplifier currently under restoration.
It seems to be steel judging by its weight although it’s been plated or passivated. There’s rather a lot of staining and discolouration and also what appears to be pitting. Viewed through an 8x loupe the latter looks almost like tiny rust spots. My best guess is that something has been spilt inside the amp at some stage. Hopefully the photos give some idea of the problem.
None of the stains respond to any solvent on my shelf including AVGAS (which can be very effective on metal staining) and common household cleaners don’t touch it either. It would seem that the only solution is going to be refinishing of some sort but can anyone suggest the best way to go about it? A colleague recommended powder coating but this isn’t something I’m familiar with.
Any advice very gratefully received and I'll happily send more detailed pics if it helps.
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