BBC Portable Tone Source
- Made:
- circa 1930
This image is released under a CC BY-NC-SA 4.0
Licence
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LicensePortable tone source
Science Museum Group
© The Board of Trustees of the Science Museum
Continuously variable 40Hz to 10 KHz in three ranges. R/C oscillator, battery or mains. 4 Valves. Missing main air-spaced variable capacitor and control knob.
Details
- Category:
- Television
- Collection:
- BBC Heritage Collection
- Object Number:
- 2012-5118/103
- Materials:
- wood (unidentified), plastic (unidentified), metal (unknown) and electronic components
- Measurements:
-
overall: 280 mm x 500 mm x 195 mm, 9.5 kg
- type:
- audio equipment
