Antique radios, Old Time Radios
18119M_Leuchtquarz
Country:
Germany
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Identical to |
18119M_Leuchtquarz
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Base |
SPECIAL TUBEBASE in general
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Was used by |
Technology / Measurement |
Description |
Luminous Quartz Resonator
Due to the field produced by the piezo-electric charge, a very distinct glow appears on the surface of the quartz bar (appr. 0.3 x 1.5 mm) when its resonant frequency is applied.
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