Thread: Zx81
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Old 10th Mar 2020, 10:28 pm   #23
John Earland
Hexode
 
Join Date: May 2013
Location: Middlesbrough, North Yorkshire, UK.
Posts: 442
Default Re: Zx81

Quote:
Originally Posted by fetteler View Post
Thank you.
That looks very much like like hum on the video to me - i.e. there is a 50/100Hz waveform superimposed on the video output. Try powering the ZX81 from a battery...
Steve.
That’s a great idea! Will do and I’ll let you know-thank you.
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