Notes from the Electronics SIG Zoom meeting 22 August 2024

[Hugh Norwood]

Notes from the Electronics SIG Zoom meeting 22 August 2024

Six members attended
Tom Alexander, Graeme Dunbar, Vern Ehlke, Stephen Rainsbury, Jeffrey Sydenham, Hugh Norwood

Dave Cooper and Stephen Elliott sent apologies

Tom's layout will have a socket on both the front and back to take a controller (d.c.) and he has designed a lockout circuit so that if by by chance a second controllers is plugged into the free socket, it will locked out until the first controller has bee unplugged, thus preventing problems. He is currently waiting for the printed circuit boards to arrive.

Stephen was having problems in finding "traditional" lead/tin solder in respectable amounts (i.e. not in giant quantities). I think we have found one or two sources. He was also looking into remote control for Lego – apparently they have changed their offerings over the years.

Graeme has been gallivanting off in pursuit of radio controlled boats and planes, as well "jobs at home" (we all have those <grin>) However, he is going to resume working on his servo-controlled point motor that uses a shaped cam, which relieves the burden of having to precisely set the servo throws.

Vern has also been involved with "jobs at home" and not had time to devote to the important things...

Jeffrey introduced himself as a first-time attender.

Hugh has been working on his combined d.c. and P.W.M. controller. It all tests out and he's making a start on drilling the holes in the front panel (no turning back, now!)


We pencilled in October 10 for the next meeting – subject to confirmation.