3 Sep
2025
3 Sep
'25
9:18 a.m.
-----Original Message-----
From: Jon Elson via cctalk <cctalk(a)classiccmp.org>
Sent: 03 September 2025 15:39
To: cctalk(a)classiccmp.org
Cc: Jon Elson <elson(a)pico-systems.com>
Subject: [cctalk] Re: Repairing an Olivetti M24 PSU
Those are not real. They are conducted interference
from the switching
supply getting into the scope preamp via the ground lead.
I have seen this MANY times, ignore it.
Jon
Thanks Jon, obviously I don't have enough experience to know this. How can I recognise
this in the future?
Thanks
Rob