> On 2018-05-04, at 15:15, groepaz@gmx.net wrote: > >>> Just out of curiosity, I got a crazy idea. Is there any means to >>> detect an external signal be it light / sound / magnetism / heat etc. >> >> Electromagnetism? Just in case you run out of gamma rays ;-) >> >> https://www.c64-wiki.com/wiki/WLAN >> >> You may also try the good'old acoustic coupler (Akustikkoppler in German) >> >> https://de.wikipedia.org/wiki/Akustikkoppler >> >> if you truly want to feel the blues... > > what you can measure relatively easily are the fluctations in the power grid > frequency (measure the TOD clock cycles against CIA-Timer cycles) Unless you run the PRG on an SX ;-) -- SD! - http://e4aws.silverdr.com/Received on 2018-05-04 17:00:02
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