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Date: Fri, 03 Jul 2015 22:19:38 +0100
From: "Peter C.J. Clifton" <pcjc2 AT cam DOT ac DOT uk>
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Subject: Re: [geda-user] OFFTOPIC: New toy...
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On 2015-07-03 05:31, Evan Foss (evanfoss AT gmail DOT com) [via 
geda-user AT delorie DOT com] wrote:
> Little bit of general advise. Get/fabricate a clamp on probe for this.
> Many an oscilloscope have died trying to fix these kind of things.
> Thankfully none of mine but still.

I tend to borrow a HV isolation probe (and current clamp if things 
really need to get serious).. but have up to 100:1 'scope probes too, 
that can help for power circuits.