Title:
VACUUM TUBE CIRCUIT
Document Type and Number:
Japanese Patent JP2004312170
Kind Code:
A
Abstract:
To provide a novel vacuum tube circuit that takes into account a low voltage applied to a heater of a vacuum tube or the like.
The vacuum tube circuit 100 employing the vacuum tube 20 having a cathode 22, a plate 21, a grid 23 and the heater 25 for emitting electrons from the cathode 22, is configured so that an input signal is applied to the plate 21 to obtain an output signal from the grid 23, and a prescribed low voltage such as 2.5(V) is applied to the heater 25 so as to allow the vacuum tube 20 to carry out amplification even when the heater voltage is very low.
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Inventors:
SAEGUSA FUMIO
Application Number:
JP2003100538A
Publication Date:
November 04, 2004
Filing Date:
April 03, 2003
Export Citation:
Assignee:
KORG INC
International Classes:
H03F1/04; H03F1/13; H03F3/02; (IPC1-7): H03F3/02
Attorney, Agent or Firm:
Hiroshi Nemoto