Hey! I’m Kyle. I recently bought a Marconi 139 Canadian built and currently in progress of restoring it. I stumbled across this forum while looking for info on it. I found info on it on another thread but it was not enough. My radio did somewhat work. I had it turned on for maybe ten minutes when I first got it. I’m in the middle of restoring radio chassis.

I would like to know how the magic eye works. I have been doing some research on the tube and have an idea on how it works but not how it works on the actual radio itself. Does the eye turn on when the radio turns on or when you tune in a station or comes on when the radio is on and closes the shadow when tuned in a station? Mine did not come on at all nut I did see a small glow coming off the filament.

How do you tune in the autotune module? I have the service manual and I see that each row of buttons only tunes into so many kilocycles (Ex 600 – 800k.c) Do you turn them clockwise top to bottom until you fond the station that you want?

And the last question. I’m looking for two maybe three of the knobs. I need one of the inner ones. The other one is cracked but usable if glued and the other one that I need is the outter smaller center knob for the automatic / manual switch. Where would a guy find some replacements?

Any help would be greatly appreciated. Like I said I’m in the middle of restoring it, both the cabinet and chassis. I’m just really curious on how this old radio works. Thanks, Kyle.