Our next meeting is:
Topic: Electronics SIG - Graeme Dunbar
Time: Feb 29, 2024 20:00 London
Join Zoom Meeting
https://us06web.zoom.us/j/86981613390?pwd=aC5HNiLJiZdxp65hKlwuqpn6OYKZXj.1
Meeting ID: 869 8161 3390
Passcode: 067188
Hope to be there!
Apologies All,
I will be in Barbados (5-masted Clipper) sailing and trying to do a bit of Astro-navigation.
I have a couple of tech' queries if anyone can lend some assistance. One relates to loco noise /weight and the other the use of a suitable circuit to test a Techtronix 'scope.
Thanks,
Dave
Most scopes have a square wave output used to adjust the probes. that will also show you if the thing is working... Or do you need something else?
Thanks Hugh,
'Scope : Yes, I think I can remember seeing something labelled as "probe adjust". I'll try that...
Loco query : I recently converted a Farish 08 ('N') shunter from plastic body to die-cast (Peco "James"). The good point is that where the loco used to stall (tightish radius bits) it now runs fine. The minus point is that now it is very noisy. I guess it's to do with internal resonance of some kind ? (Not really an 'electronics' topic but glad of any ideas !).