Roadmaster
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Select picture or schematic to display from thumbnails on the right and click for download.
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Year:
1933
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Category: Car Radio, perhaps also + sound player/recorder |
| Valves / Tubes |
5:
6A7 78 75 42 84
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| Main principle |
Superheterodyne (common); 2 AF stage(s)
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| Tuned circuits |
5 AM circuit(s) |
| Wave bands |
Broadcast only (MW). |
| Details |
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| Power type and voltage |
Storage Battery for all (e.g. for car radios and amateur radios) |
| Loudspeaker |
Electro Magnetic Dynamic LS (moving-coil with field excitation coil) |
| Power out |
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| from Radiomuseum.org |
Model: Roadmaster - Halson Radio Mfg. Co.; New |
| Notes |
Built-in vibrator for B+ |
| External source of data |
Ernst Erb |
| Circuit diagram reference |
Rider's Perpetual, Volume 4 = ca. 1934 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.
