612
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Select picture or schematic to display from thumbnails on the right and click for download.
| Main principle |
Superheterodyne (common); ZF/IF 456 kHz; 2 AF stage(s)
|
| Tuned circuits |
6 AM circuit(s) |
| Wave bands |
Broadcast plus 2 Short Wave bands. |
| Details |
|
| Power type and voltage |
Alternating Current supply (AC) / 110-120 Volt |
| Loudspeaker |
Electro Magnetic Dynamic LS (moving-coil with field excitation coil) |
| Power out |
|
| from Radiomuseum.org |
Model: 612 - Halson Radio Mfg. Co.; New |
| Material |
Wooden case |
| Shape |
Tablemodel, with any shape - general. |
| Notes |
BC (540-1725 kHz), SW1 (2.3-7.9 MHz) and SW2 (7.4-25.0 MHz) bands. Tuning eye. Push-pull audio amplifier. |
| External source of data |
Ernst Erb |
| Source of data |
The Radio Collector's Directory and Price Guide 1921 - 1965 |
| Circuit diagram reference |
Rider's Perpetual, Volume 9 = 1938 and before |
All listed radios etc. from Halson Radio Mfg. Co.; New York City (NY)
Here you find 105 models, 35 with images and 64 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
