Leevers-Rich Amplifier and a Beat Frequency Oscillator
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Science Museum Group
© The Board of Trustees of the Science Museum
Leevers-rich amplifier and a beat frequency oscillator used by British Movietone News
Details
- Category:
- Cinematography
- Object Number:
- 1980-386
- type:
- amplifier
- credit:
- The National Media Museum, Bradford
