Magnetyczny bezprzewodowy Przyjaciel triode valve Ruch karać Ponownie wklej
Audion amplifier. Diagram of an Audion triode valve that was the first amplifier. It was invented by Lee De Forest in 1907. De Forest worked on vacuum Stock Photo - Alamy
Triode Valve / Tube: operation formula theory » Electronics Notes
Karltone - The Triode Valve - The diode valve is essentially a rectifier, turning AC into DC, whether these be large mains voltages or relatively small signal voltages, as in the detection