Experiences with a composite video mod for a Sinclair ZX81

[Pete Rittwage]

NPN is used for simple video amps... so 2n3904 or equivalent.

-Pete Rittwage



> Which type of transistor did you use for the mod? I don't see that in the
> writeup.. though I could well be missing it.
>
> Linked article says only "simple NPN"
>
> On Sat, Jan 2, 2016 at 5:18 PM, Terry Stewart <terry at webweavers.co.nz>
> wrote:
>
>> Going through and testing the collection over this Xmas period also
>> prods
>> me into doing mods I've procrastinated about.  A very simple mod but
>> here
>> is a write up for anyone who is interested...
>>
>>
>> http://www.classic-computers.org.nz/blog/2016-01-03-composite-video-for-zx81.htm
>>
>> Terry (Tez)
>>
>