On Sat, 11 Apr 2020 20:10:54 +0100, T i m wrote:

Most of my recent 'electronics' projects have revolved around the
Arduino micro controllers but there is also a certain purity with
something that just works made from discrete components.

I built one of these, for fun (it does work):

https://shop.evilmadscientist.com/652

and also one of these:

https://shop.evilmadscientist.com/productsmenu/762

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