Zenith Model 7-S-363 (7S363) Console Radio (1939)
Zenith 7-S-363
The Zenith 7-S-363 (7S363) is a popular Zenith floor model from
the 1939 model season. It is one of their more compact console
radios and, with its side buttresses and waterfall style instrument
panel, finished in contrasting veneers, it's one of their most
beautiful too. It was introduced in the fall of 1938 with a selling
price of  $69.95.

The radio has the following features:-

  • 7-tube superheterodyne, all-wave
  • tuning eye
  • Radiorgan tone control for 64 tonal combinations
  • Automatic tip-touch tuning (see my 5R317 page for details)
  • 10" electrodynamic speaker
  • Walnut cabinet

In the photograph, the radiorgan switches are to the right of the
dial and the tip-touch controls to the left. Click on the expanded
view of the dial for greater detail.
You'll believe in miracles when you see and hear this Zenith!
Dial Face Close up
The radio with the Radiorgan.
Zenith's 1939 Radiorgan - Have the Music Your Way

"The new and exclusive radiorgan is an ingenious device, providing
through a series of six organ key-board tabs a choice of 64 tonal
combinations. E.F. McDonald Jr, former Syracusan, and president of the
Zenith Radio Corporation describes this new control as the most original
and most exclusive tone improvement ever placed on a home radio.
McDonald claims the listener is able for the first time to receive the
complete range of tonal combinations, whether they be treble, bass or
alto. Through this radiorgan development it is no longer necessary to
sacrifice high notes accentuated, or vice versa.

Through the six "organ" stops, the listener has control of six different
tone channels ranging from treble to low bass. These six tone channels
may be mixed into 64 different and distinct tonal shades. For the first
time it is said to be possible to reproduce the high singing notes of the
violin, and the deep notes of the woodwinds at the same time without
losing the rich tone of either".
This radio was purchased at a swap meet. It needed a correct replacement grille cloth from www.grillecloth.com and
replacement station id and RADIORGAN tabs* from
www.gn4radios.com. I have completely re-capped this radio, replaced
out-of-tolerance resistors, replaced the dim and ailing 6U5 tuning eye tube with a bright new one, restrung the dial belts
and replaced the 6X5G tube that's prone to shorting out with a more reliable 6X5GT type. It now plays like new.

*
Over the years, these tabs have shown a tendency to fall out and be lost.
..with tip-touch tuning. Touch the button.. there's your station.
The tube line-up is 6A8G (mixer/LO), 6K7G (IF amp), 6J5G (2nd
detector/AVC), 6F5G (1st AF), 6F6G (power amp), 6X5G
(rectifier) and 6U5 (tuning eye). See schematic
here.
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