Zenith 1961 MJ1035 Stereo Radio

[Chad Hauris]

The last Zenith tube radio's line up was I believe:
12DT8 FM convertor and RF amp
12BA6 AM convertor
12BA6 IF amp
12BA6 IF amp #2
12AU6 Limiter
14GT8 FM discriminator, AM detector, 1st stage audio
35C5 audio output
Silicon power rectifier

Some of the earlier models used 2 seperate tubes in the FM RF section (6BJ6 RF amp and 12AT7 mixer and oscillator perhaps?) and used a 19T8 for the discriminator, AM detector and 1st audio.

It seems like it is the limiter-discriminator system rather than the ratio detector used in most other tube FM table radios of the 50's and 60's that gives the Zenith the performance edge.