Zenith 5311U / 24MC32 restoration

[Electronic M]

Ahh, so you won that set. That era of zenith, assuming the tuner/IF are good, are real easy to fix and usually rather reliable.

[old_coot88]

The very first thing I would do is verify that the H efficiency coil is intact. The coil form tends to crystalize over time which lets the windings go loose, detuning the coil. If that happens, you can't tune it for the required 'dip' in H output tube cathode current.

The coil form material that's most often affected is whitish, semi-translucent plastic. If the coil form is brown phenolic, yellow, or solid opaque white, it's probably OK.

If the eff. coil is busted it renders the set dead in the water until replaced.

[dieseljeep]

Originally Posted by Electronic M

Ahh, so you won that set. That era of zenith, assuming the tuner/IF are good, are real easy to fix and usually rather reliable.

I see, some hack left off the X-ray cage around the 6BK4! It also has the GVG tuner. I would've bet it had the Oak or the standard Coil. The base models usually did. It also seems to have a 21FB with a separate safety glass, which is great with me!