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Sun Jul 28, 2019, 06:09 PM

From my garage to DI....

1951 Zenith Super Triumph.

Had a perfect cabinet but smoked the selenium rectifier.

So I found a restored chassis for a good price, which totally exceeded my expectations.

Note the tuned RF stage!

Specs -


Country: United States of America (USA)
Manufacturer / Brand: Zenith Radio Corp.; Chicago, IL
alternative name

Chicago Radio Lab
Year: 1951 Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 7: 12BA6 12AT7 12BA6 12BA6 12AU6 19T8 35C5
Main principle Superhet with RF-stage; ZF/IF 455/10700 kHz
Tuned circuits 7 AM circuit(s) 9 FM circuit(s)
Wave bands Broadcast (BC) and FM or UHF.
Details
Power type and voltage AC/DC-set / 110 - 120 Volt
Loudspeaker Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 5.25 inch = 13.3 cm
Power out
from Radiomuseum.org Model: H724 - The Super-Triumph Ch= 7H02 - Zenith Radio Corp.; Chicago,
Material Modern plastics (no Bakelite or Catalin)
Shape Tablemodel, Mantel/Midget/Compact up to 14" width, but not a Portable (See power data. Sometimes with handle but for mains only).
Notes The Zenith Modell H-724 is an AC-DC Operated 7 Tube AM-FM Superheterodyne Receiver with Loop Antenna.
Collectors' prices
External source of data Ernst Erb
Source of data Collector's Guide to Antique Radios 4. Edition

https://www.radiomuseum.org/r/zenith_h724_ch7h02.html

The good cabinet...




Playing the good chassis...





This thing is LOUD AND POWERFUL and filled the garage with sound, could be heard clearly outside. The video sound doesn't do it justice.

On the back, near the end of the video, you can see "FM The Armstrong Method" sticker. Major Edwin Armstrong was the inventor of the Superheterodyne circuit, and F.M. radio as we know it.

He commited suicide after being hounded into ruin by Davis Sarnoff, C.E.O. of R.C.A.. Sarnoff was heavily invested in A.M. radio, and saw F.M as a threat. So, Armstrong paid the price for being too far ahead of his time.

Also on the back are stickers from long vanished radio repair shops, with phone numbers that begin with letters.

Pure living Americana.


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