Radiola Superheterodyne AR-812 "Semi-Portable"
- United States of America (USA)
- Manufacturer / Brand
- RCA (RCA Victor Co. Inc.); New York (NY)
- Broadcast Receiver - or past WW2 Tuner
- Radiomuseum.org ID
- alternative name: RCA Manufacturing || Victor Talking Machine
Click on the schematic thumbnail to request the schematic as a free document.
- Number of Tubes
- Main principle
- Superheterodyne (common); ZF/IF 50 kHz; 2 AF stage(s); Reflex
- Tuned circuits
- 5 AM circuit(s)
- Wave bands
- Broadcast only (MW).
- Power type and voltage
- Dry Batteries / 2 x 45 or 4 x 22,5 & 6 x 1.5 Volt
- - This model requires external speaker(s).
- Wooden case
- from Radiomuseum.org
- Model: Radiola Superheterodyne AR-812 "Semi-Portable" - RCA RCA Victor Co. Inc.; New
- Portable set > 8 inch (also usable without mains)
- Dimensions (WHD)
- 35 x 11 x 11 inch / 889 x 279 x 279 mm
2nd harmonic mixer; two dials (primary tuning control knobs) . "Portable". Self contained loop aerial. Speaker output selectable from V5 or V6.
V1 = RF & 1st IF reflexed.
V2= Oscillator/1st Detector.
V4= 2nd Detector.
V5= 1st AF.
V6= 2nd AF.
Siehe auch Triodensuperhets.
- Price in first year of sale
- 220.00 $
- External source of data
- Ernst Erb
- Source of data
- Radio Collector`s Guide 1921-1932
- Literature/Schematics (1)
- Radio Manufacturers of the 1920's, Vol. 3
- Literature/Schematics (2)
- Radio Broadcast, Mar. 1924, p. 443
- Other Models
Here you find 5020 models, 3014 with images and 4062 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from RCA (RCA Victor Co. Inc.); New York (NY)
The model Radiola Superheterodyne can be seen in the following museums.
Forum contributions about this model: RCA RCA Victor Co.: Radiola Superheterodyne AR-812 "Semi-Portable"
Threads: 3 | Posts: 3
Armstrong explains some of his research work trying to do the first super heterodyne radio viable.
Obtained from a copy of Wireless Age, April 1924, stored in americanradiohistory.com
Moisés Piedade, 28.Aug.14
The AR-812 is pictured briefly in Fritz Lang's first sound film "M" from 1931.
Mark Hippenstiel, 11.Apr.13
Konrad Birkner † 12.08.2014, 07.Mar.04