hot scope leads?
Andre said:
In the 50's and 60's there was a series of electronic books by
Aisberg, that were translated into other languages as well.
They were written around two characters,. ask-all and know-all
Heh! You bet I know these books, they're on my bookshelf for many
years. Even taught my little cousin some tube-electronics ;-)
This n.g. is populated with know-all's waiting for an ask-all
to show up with a stupid question so they have an oppertunity
to spread their knowledge.
No doubt.
Ofcause all know-all's have different opinions on tricky questions.
And their ego's are so tensed it immediately starts a war,.
not looking to arguments but shouting.
No doubt.
Finally
Someone who is messing around inside a tube-amplifier probably
is very aware of the +Ub that is found there.
You assume wrong, my friend.
I used to think like that, but judging from the strange questions that
pop up from time to time, one has to be extremely careful in what
advice to give, and how to say it.
Call me an idealist, but I think the "know-alls" of this NG have a
responsibility towards the newcomers.
The ( chassis of the ) apparatus you are working on should be
grounded and your scope grounded to that.
If you add an isolation transformer to supply the mains to the DUT, I
agree, and this is how it should be done.
(You and I both know that experienced servicemen sometimes "forget" to
ground their scope, but let's not go there) ;-)
There is allways a way to get defibrilated.
Yep, but if it can be easily avoided, please do so.
--
"All amps sound alike, but some sound more alike than others".
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