My comment was not made regarding the use of a scope, but, for safety when working on any circuity that is directly connected to the incoming mains/utility supply.
It was not made to question your suggested strategy.
George G6HIG
________________________________________
From: hp_agilent_equipment@... <hp_agilent_equipment@...> on behalf of Chuck Harris cfharris@... [hp_agilent_equipment] <hp_agilent_equipment@...>
Sent: 30 April 2017 16:38
To: hp_agilent_equipment@...
Subject: Re: [hp_agilent_equipment] Re: HP6034 PSU Q1, 2 fet
No, sorry it isn't.
There are lots of strategies that will work just as safely.
Using a pair of adequately rated 10x probes, and the ADD invert
mode on your scope is one of them, and is precisely why that mode
exists on virtually all scopes.
Using your probes differentially allows you to keep all of the
DUT's groundings and other protections in place, which an isolation
transformer does not.
-Chuck Harris
george g_einst@... [hp_agilent_equipment] wrote:
Hi Chuck
An isolation transformer is required equipment no just a good idea.
73
George G6HIG ________________________________________ From:
