Zenith Model 5-R-135 (5R135) Tombstone Radio (1937)
Zenith 5-R-135 (1937)
"Zenith 5-R-135. A 5-tube triple-filtered superheterodyne
with Metaglass tubes. Tuning range from 535 to 1712
kilocycles (560 - 175 meters)... broadcast stations and
police. Has Big Black Dial and other 1937 Zenith features.
8" Electro-Dynamic speaker assures excellent tone quality.

This beautiful table model is of graceful style. Simplicity of
design and choice of woods enhance the appearance of the
cabinet. Made of selected center-matched figured walnut -
hand polished to a soft, satiny finish.

As usual, Zenith is AGAIN A YEAR AHEAD... and you, too,
will be a year ahead if you own a new Zenith. Decide TODAY
you'll see the Zenith 5-R-135 TOMORROW."
Everyone takes his hat off to this new Zenith 1937 LONG DISTANCE Radio
The 5-R-135 was an entry-level radio in Zenith's 1937 line-up. It
was introduced in late 1936 with a selling price of $29.95. Even
though the tapered tombstone style cabinet is somewhat plain in
appearance, it sold well and is a relatively common find today.

The following is the text of a 1937 advertisement for this model.
"The choice of most Women is the new Zenith
1937
LONG DISTANCE Radio.

Women are not interested in technicalities. They
want a radio that is easy to operate and beautiful
in appearance. Zenith has always been a favorite
with women. Come in and see why. Zenith 5-R-135."

The wording in this advertisement would of course
be considered unacceptable by the standards of
society today!
                                Technical Details

The 5-R-135 is a 5-tube ac-powered superheterodyne covering the
standard broadcast and first police band from 535-1712kc. It features
Automatic Volume Control and a two-point tone control. The tube
complement is 6A8/6A8G (mixer/LO), 6K7/6K7G (1st IF), 6Q7/6Q7G
(2nd det/AVC/1st AF), 6F6/6F6G (AF output) and 5W4/5Y3G
(rectifier). The schematic can be found
here, courtesy of NostalgiaAir.

For 1936 & 1937, Zenith adopted a "wait and see" policy with regard
to the new metal tubes and as a result designed their sets to work
with either. This was prominently reflected in their advertising and was
noted on their schematics by the showing of both designations (e.g.
6A8 for the metal version and 6A8G for the glass type).
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