ID:
2554
Maker's Name:
General Radio Co
Where made:
USA
Used to measure the wavelength ( actually the frequency) of a radio transmitter in the range 0.5 Mc/s - 150 Mc/s .
Resonance of a capacitor/ inductor circuit is detected by an incandescent lamp with a very fine hairpin filament as the capacitace is varied.
A wide range is achieved by use of five plug-in inductor coils with the following ranges
1) 0.5 - 1.6 Mc/s
2) 1.6 - 5 Mc/s
3)5 - 16 Mc/s
4)16 - 50 Mc/s
5)50 - 150 Mc/s
