1920s Ferranti AF5 Large Audio Frequency Transformer
1920s Ferranti AF5 Large Audio Frequency Transformer
Ferranti
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1920s Ferranti AF5 Large Audio Frequency Transformer
This small 1920s Ferranti AF5 Large Audio Frequency Transformer is really a work of art. It's never been out of its box and is excellent condition.
The impedance has been measured as follows:
- Primary: 2K4
- Secondary: 30K8
The box is scuffed and discoloured and one of the flaps is missing and another has detached.
A copy of the original specification is shown below:
- Approximate Size (WHD): 7.8 x 9.5 x 7 cm
- Ratio 1 to 3.5
- Inductance 120/170 Henries
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