| Electronics > Projects, Designs, and Technical Stuff |
| Can a diode amplify sound? |
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| ELS122:
is a diode whit an indirectly heated cathode a triode?? I thought not... it's pretty much like changing the voltage of a diode at one end, which changes it at the other. and if the diode has some gain it could theoretically amplify the signal. |
| Gyro:
--- Quote from: ELS122 on December 12, 2019, 09:31:35 pm ---... and if the diode has some gain it could theoretically amplify the signal. --- End quote --- The diode has no gain so cannot theoretically amplify anything. |
| Yansi:
Here you are, a parametric audio amplifier using varactors... and some other interesting stuff. This is what I]d call a diode amplifier. Courtesy of DL3PB, http://pa1b-qrp.blogspot.com/2012/02/parasaki.html?m=1 |
| daqq:
In short: No. In long: It might be able to hack together some awful solution with a uselessly small gain. |
| iMo:
--- Quote from: Yansi on December 12, 2019, 10:24:31 pm ---Here you are, a parametric audio amplifier using varactors.. --- End quote --- TD718 is a tunnel diode, afaik.. You may use a traveling wave tube as well then :) |
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