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Tunnel Diode Amplifier | Tunnel Diode Oscillator
https://www.rfwireless-world.com/ApplicationNotes/Tunnel-diode-as-Amplifier-and-Oscillator.html
Tunnel diode amplify the signal fed at port-2 and will provide amplified output at port-3. Tunnel Diode Oscillator Fig:3 Tunnel Diode Oscillator. The figure-3 depicts tunnel diode based oscillator circuit. The circuit helps generate microwave frequencies upto 100 GHz. As shown in the figure-3, tunnel diode is connected in series with the tank circuit.
Tunnel Diode Amplifier - EEWeb
https://www.eeweb.com/tunnel-diode-amplifier/
A circulator is a waveguide device that allows energy to travel in one direction only. The tunnel diode in the figure shown is connected across a tuned-input circuit. This arrangement normally produces feedback that causes oscillations if the feedback is allowed to reflect back to the tuned-input circuit. The feedback is prevented because the circulator carries all excess …
TUNNEL-DIODE MICROWAVE AMPLIFIERS
https://www.jhuapl.edu/Content/techdigest/pdf/APL-V04-N05/APL-04-05-Munsterman.pdf
Tunnel diodes provide a means of low-noise microwave amplification, with the amplifiers using the negative resistance of the tunnel diode to a.chieve amplification by reflection. The tunnel diode and its assumed equivalent circuit are discussed. The concept of negative-resistance reflection amplifiers is discussed from the standpoints of stability, gain, and noise performance.
Anybody ever make a tunnel diode type amplifier for radio ...
https://www.eevblog.com/forum/projects/anybody-ever-make-a-tunnel-diode-type-amplifier-for-radio-frequency/
(sparkbangbuzz.com) This is a homemade tunnel diode amplifying device that works well for radio frequencies well into the higher frequencies, but apparently can also do audio to some extent. (The metal working, of course, was done outside and with appropriate protection from heat, sparks, and fumes.
MJRainey - Tunnel Diode Receiver
http://www.qrp.gr/technology/diodes_only/mjrainey/tunneldiodereceiver.html
Tunnel Diode Receiver. This direct-conversion receiver uses a sub-harmonic (Polyakov) mixer with a tunnel diode local oscillator. It uses a varactor-based audio amplifier that's energized by a second tunnel diode oscillator. The varactor audio amplifier is somewhat novel, although I first noticed this idea in an article dating back to the early 1950's.
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