High-frequency generator

Details High-frequency generator High-frequency generator

1988-07-12

1990-01-30

Heyman, John S.

Oscillators

L-c type oscillators

328225, 328226, H03J 300

Patent

active

048976199

ABSTRACT:
In a high-frequency generator (1) comprising a multigrid electron tube (2), the control grid (3) and the screen grid (4) are substantially d.c. coupled. The tube then oscillates via the internal parasitic capacitance between the screen grid (4) and anode (5) without requiring an external feedback circuit. A reduction of the heat dissipation and a compact electron tube are the result with high oscillation frequencies likewise being attainable. A high-frequency decoupling of the control grid (3), with an intermittent operation of the generator (1), results in a very limited heat dissipation, causing the generator (1) to be very compact.

REFERENCES:
patent: 2577454 (1951-12-01), Diemer
patent: 2591940 (1952-04-01), Hugenholtz
patent: 3268822 (1966-08-01), Hickey

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