TRIODE TM11 662 FIG 4.jpg
en
TRIODE TM11 662 FIG 4, Primitive triode vacuum tube, arrangement of electrodes and battery connections., Primitive triode vacuum tube, arrangement of electrodes and battery connections.
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en
TRIODE TM11 662 FIG 4, Vacuum triodes, Vacuum tubes
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ja
TRIODE TM11 662 FIG 4、原始三極真空管、電極と電池の接続の配置。
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ja
TRIODE TM11 662 FIG 4、真空三極管、真空管
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triode thermionic current thermionic vacuum tubed