[sdiy] Negative resistance elements

ezion ezion67 at gmail.com
Tue Apr 6 18:58:29 CEST 2021


Interesting element.
Could be handy for wave shaping applications.

On Sat, Apr 3, 2021 at 3:28 AM cheater cheater via Synth-diy <
synth-diy at synth-diy.org> wrote:

> Hi all, a recent conversation about tunnel diodes brought me to the
> question of something like this could be useful with synthesizer
> design. Putting aside the fact that they are currently very rare, are
> the unique characteristics of this kind of device useful?
> Specifically, they have a negative resistance segment in their I/V
> curve. The curve rises (positive resistance), then falls (negative
> resistance), then rises again.
>
> This article explains tunneling diodes pretty well:
>
> https://www.electronicshub.org/tunnel-diode-working-characteristics-applications/
>
> and here is the I/V curve:
>
> https://www.electronicshub.org/wp-content/uploads/2018/10/Tunnel-Diode-I-V-Characteristics.jpg
>
> I know for one thing tunnel diodes were used to make very fast
> oscillators, schmitt triggers, and flip-flops, but other than that,
> are there any other uses where they could be used?
>
> Thanks
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