Recent content by Harry Bloomfield

I never got to 'play' with it, but my uni had an absolutely magnificent beast of an analogue computer, in a large, polished wood case. I'm not even sure anyone there, knew how to 'drive' it.

And then, was roughly when I built my first 'computer'. All I remember of it was a rather crude display, and a crude hex keypad, but a computer, you could program with instructions. What I built later in that decade, was very much more advanced, and ended up as an S100.

He did say, it went flat, whilst stood, but... Connect a dc 20v meter across the battery terminals. Engine off, it should show maybe 12.5v -ish. Start the engine, it should show 14.0v/14.5v. Turn everything on, and it should still show close to 14v.

Have you considered using a PIR(S), rather than timers? You fit them, where hot water is likely to be needed, to then run the pump, to provide the instant hot water at the tap. You walk in the bathroom, the pump starts up, triggered by the PIR. When you vacate the bathroom, the pump switches...

Nah, it just has to be custard!

There are lots of possibilities, you start, by measuring the actual level of discharge, then if there is one, pull fuses for circuits out one by one, until the discharge disappears. All modern cars do have a normal level of discharge, usually between 10 and 40mA, just to maintain alarm, ECU's...

Exactly, which was why I suggested on page 1 of this thread...

That's what I used to do! I do miss the exhilarating rides on the bike, I'm just too old and creaky to handle one now.

With all due respect John - You are well known for doing exactly that :-)

As I've already mentioned, I had to do quite a few repairs, and fixes recently, on the tractor/mower. A word I kept coming across, in relation to these machines, was 'hydrostatic drive'. It meant nothing to me, and I just assumed, wrongly, that it was just a fancy name for the variable speed...

There is nowt theoretical about it, I have personally suffered examples of the problem. Why do you suppose manufacturers moved away from tinned ends, to furrels, when tinned was quicker, cheaper? Soldering works fine, except when the solder is connection is via a mechanical compression, when...

That is bad advice, the solder will creep under the screws pressure, potentially causing a poor, overheated connection.

I used to do that, but found the visor streamed up, at low speed.

If you ignore the energy bill!

OK, portable phone then. You didn't suggest the 'old phones' you had in mind were GSM old phones, only old phones, and to my mind, old phones are pre-GSM/analogue. The only way to resurrect such a phone, would be to rip everything out, and replace it with the contents of a more modern GSM phone...