[37silverstreak]

Hey everyone.
after cleaning and reassembling the shutter dial and seeing how it works, I think I figured it out. There are only the three faces, standard broadcast, shortwave and police. There is also on the bottom of the faceplate a small window for an indicator plate that mounts on the lever that actuates the shutters. On this indicator are the following, from left to right--- Frequency Modulation- Automatic- Standard Broadcast- Shortwave- Police. When it's all put together right you have "Standard Broadcast" showing in the window. When you rotate the control counterclockwise it activates the shutters to fall away and show "Shortwave" and the corresponding faceplate. The same thing for the police band. If you start on "Standard Broadcast and rotate the control clockwise you will see "Automatic" pop up in the window, but no change in the shutter dials. Automatic is the setting for using the pre-tuned station buttons, I believe. As for "Frequency Modulation" the control shaft cannot be rotated any further clockwise for it to appear. So, I believe that it is not used on this set, it's just labeled on the indicator. Maybe this indicator plate was used on another model Zenith that had that capability, I don't know.
The really good news is that the set is up and running and it sounds really nice too!! It was a big job. I replaced all the caps and resistors as well as all that wonderful rubber coated wire!! Always a big thrill bringing up a set on the variac for the first time after a rebuild! I feel just like Doctor Frankenstein!!!!! In the process now of trying to align it, slowly figuring it out.
Kevin