Anyone know where I can get a schematic for a Zenith
trans-oceanic? No model # Date stamped June 24 1952.
Tubes are 1L6; 1U4; 1U4; 1U5; 3V4.
C Harris

Probably a model H500. You can find a schematic for it under Zenith/H500 in the Resources section.

:Probably a model H500. You can find a schematic for it under Zenith/H500 in the Resources section.
:
Yes, that is it! Thanks, CV
C Harris

:Probably a model H500. You can find a schematic for it under Zenith/H500 in the Resources section.
:
Correction, not quite the same, my model is wired for a 1U5 for detector and first audio.
Charris

1U5 is a functionally-equivalent tube to the 1S5; except that the pinout is different. It's also a superior-performing tube to the 1S5, being anti-microphonic and with better diode section shielding. Could be a running production mod to the H500 or it could be a user-installed conversion. Google "Trans Oceanic H500" and see if the images that you get appear to be similar to your set.

A little further research shows that Zenith replaced the 1S5 tube with the 1U5 for the second production run of the H500. This was done starting sometime in the summer of 1951. So, you have the "improved" version of this model. The NostalgiaAir Riders print covers the first run version.

:A little further research shows that Zenith replaced the 1S5 tube with the 1U5 for the second production run of the H500. This was done starting sometime in the summer of 1951. So, you have the "improved" version of this model. The NostalgiaAir Riders print covers the first run version.

Thanks again. I knew it had to be something like that as all the rest of the schematic fits.
C Harris