Questions about Trillium Jubilee Power Converter

[Go.with.the.Flo]

Hello fellow Trillium owners. We have a 1980 Jubilee and the Power Converter is missing a knob so we can't switch it from 110 Volt to 12V. The photo with the added labels is ours... you can see the missing knob. The other photo is one I found that shows the the knob. Does anyone know where we could get a replacement knob? Also, if anyone can explain how the Power Converter works I would be so appreciative. Thanks!

[David Tilston]

I am making some guesses, but this appears to be the breaker for the outlet on the panel. You would have to replace the whole switch. Since the outlet is marked 10 amp, something like this may work, but you would have to disassemble the converter to confirm if it would fit:
https://www.ebay.com/itm/TYCO-W23-X1.../232048695861?

[Go.with.the.Flo]

Thanks Dave!