The third case is a quenched spark gap and produces damped oscillations.
2.
This distance is called quenched spark gap and is calculated based on the transport speed of the material and the system-related delay time.
3.
When the station opened in 1912 it used a quenched spark-gap transmitter manufactured by Telefunken, and a receiver with a locally built crystal detector ( using galena from Northampton ).
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