[zenithfan1]

I've had the opposite luck, all the 50's and 60's Zenith B/W sets I find have a strong tube (except one). The late 50's B/W's almost always work as found, the best in B/W IMHO.
I WISH I could find that exact set, you have found a beautiful example. These almost always work but still beware of the "white time bomb" ceramic caps in there. The late 50's Zeniths have quite a few but only go bad when you least expect it. Took 10 years of occasional use on my Cherry cabinet '58 top tuning console. I need to recap it now as one popped but the set still plays fine.