HOMEBUILT HELLSCHREIBER PRINTERS AND SENDERS

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HOMEBUILT HELLSCHREIBER PRINTERS AND SENDERS

Postby Harry Dalek » Sat Feb 08, 2020 7:50 pm

Mechanical printer to the limits great work !
https://www.nonstopsystems.com/radio/he ... ebuilt.htm
The electromagnetic spectrum has no theoretical limit at either end. If all the mass/energy in the Universe is considered a 'limit', then that would be the only real theoretical limit to the maximum frequency attainable.
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Harry Dalek
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Re: HOMEBUILT HELLSCHREIBER PRINTERS AND SENDERS

Postby Steve Anderson » Sun Feb 09, 2020 3:14 pm

That guys site is well spending some time wandering about - warning, you may be there for a few hours!! Home-page:-

https://www.nonstopsystems.com/radio/fr ... o_home.htm

Some time ago I came across a site with home-built Enigma machines, sadly and rather unusually I didn't bookmark it.

Of course an Enigma machine can be emulated in a micro with a few pages of code. I did see a version written in Basic many years ago for the old BBC B computer. No, I don't have a copy...

Steve A.
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