| 21. | One triode operated in a conventional oscillator circuit.
|
| 22. | It replaced the use of power triodes in public-address amplifiers almost overnight.
|
| 23. | Miller capacitance was identified in 1920 in triode vacuum tubes by John Milton Miller.
|
| 24. | However the triode vacuum tube oscillator performed poorly above 300 MHz because of interelectrode capacitance.
|
| 25. | Triodes and a few tetrodes were made.
|
| 26. | Triodes are used for amplifiers and oscillators.
|
| 27. | This eventually became known as the triode.
|
| 28. | The triode vacuum tube made it possible to build amplifiers for broadcasting and for receivers.
|
| 29. | The final output stage had a pair of water-cooled 4220-B triodes.
|
| 30. | This was actually four triodes and their associated circuit tightly packaged in one glass envelope.
|
