Eico 430 Oscilloscope Dual Concentric Knobs

[W3KW]

I have a working Eico 430 and the k lbs were replaced at some point. The issue is they were not sized correctly so one doesn’t work and is now missing. Does anyone know of a suitable replacement? I’ve been looking everywhere and even considered buying a used one to steal the knobs. (Not ideal)

I don’t want guitar knobs, and they won’t work anyway. The bottom knob has to be thin, as there is only about 3/8” of brass for the set screw to grab. I don’t need original, just knobs that mount and operate properly, and a cool look would be a plus.

Thanks,

Wes

[CaptDon]

Probably a 1/4" large shaft with a 1/8" internal small shaft. These knobs are very common. Look on Ebay, you'll probably find several that fit your needs. Knobs of all sorts are common at ham radio hamfests. I have a cigar box filled to the top with surplus knobs. Look on Ebay by your scope model number and you may find just the knobs. try searching 'oscilloscope knobs' and I'll bet you find something!!