On Sun, 12 Apr 2020 07:02:18 +0100, Richard wrote:

On 11/04/2020 19:35, John wrote:
I haven't touched a soldering iron for about fifty years, so I thought
of using this shutdown time to get geared up for a bit of tech
activity. Got myself a USB scope, a couple of multimeters and a dual
stabilised DC power supply so far. I have loads of new components in
the loft (or at least they were in 1970 - 1980) left over from various
commercial/military projects. I hope all this will keep me interested
for a while. I started building a novel design for a human
presence/movement detector in 1976, but shelved it because of work
commitments, so I will probably continue with that for starters.

Sorry, I am just lying.

No, you're late forties/early fifties.

Eighty this year..