[GreenKeys] Here's an odd device - Teletype and Morse?

[Nick England]

Dark Emitting Diodes. You can make flashdarks with DEDs.

On Sun, Dec 16, 2018 at 6:59 PM <hwhall at compuserve.com> wrote:

> Other odd devices I've encountered include the InOp Amp, the Neither Gate,
> the No Effect Transistor, and the Infinite Delay Relay.
>
> --
Nick England K4NYW
www.navy-radio.com
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