[Test-Equipment] Advice about used scopes

[Greg Werstiuk]

I haven't run into anyone noting this previously.  Compared to others here
who have been exposed to more 7000 series hardware, I'm not in a position to
say you are incorrect.

However, I wonder if this was incorrectly extrapolated by someone from
comments about the 1GHz bandwidth 7104, a very different beast than the
balance of the 7000 series scopes and one in which I understand the CRT is
sensitive, worked hard and relatively easily damaged.



- Greg

> -----Original Message-----
> From: test-equipment-bounces at mailman.qth.net 
> [mailto:test-equipment-bounces at mailman.qth.net] On Behalf Of 
> Mike Manes
> Sent: Friday, May 04, 2007 4:56 PM
> To: Chris Albertson
> Cc: test-equipment at mailman.qth.net
> Subject: Re: [Test-Equipment] Advice about used scopes
> 
> I've been told that the CRT is a popular failure in the 7000 series.
> But it can be tested for remaining life simply by advancing 
> the brightness control slowly to max.  If the trace 
> brightness tops out and then gets dimmer, the CRT's on its last legs.
> 
> 73 de Mike W5VSI
>