On Thu, 6 Dec 2018 16:19:16 -0500, you wrote:
You're missing space for more scopes.
Depending on what you think of as the service life of the scope,
coupled with how long you will be using it, and throw in the little
bit that these scope parts are in limited supply.....
I'd like to have a good working scope, one working spare, and enough
parts units to be able to replace almost everything once.
Having said that, you may want to look into calibration equipment for
your scopes, if you want to start doing that yourself.
Those plugins will fit in a TM506 right next to the SC501.
Harvey
Without actually knowing anything, I now have two 2445B's, one 2465, and
just now a 2445 plus the cute little SC501 that fits in a TM case.? The
first 2445b was bought to use, then the second because it worked well on
all but channel one whose attenuator hadn't been adequate for oomph of
whatever Bozo plugged it into. I had one of our colleagues re-cap the
power supply, change the NVRAM for a FRAM, and replace the leaking SMD
caps and fix the damage they'd done. This scope is now VERY nice.
Now I had a really good 2445B and the second one which also now has FRAM
and better caps on A5, but whatever PS caps were in it. It works ok
manually but the Parametric functions don't work. It was a lab scope so
footless, no handle,? and missing those nice rubber things on the rear.
So fool that I was I thought I'd buy just those things ..... hah, hah,
hah - cheaper to buy a parts scope which is where the 2465 came from.
Someone had let it down a bit ungently on the time knob, destroyed the
knob and broke the VAR pot shaft.? I was able to find a complete
right-side panel on ebay and when it replaced the bad one all was well
and the scope worked nicely although the trace could lose a bit of weight.
I also discovered that the shaft on the trace-intensity knob had also
been there for the great fall, so it was replaced and now the thing is
perfect, more or less.
Thinking that no rational person needs so many scopes I offered it to
the local university science dept who had mentioned to me that they
needed a good analog scope - Voila they would get the 2465.
But then when I was cleaning it up, I decided to keep it.
There was a 2445 cheap on Ebay which allegedly needed repair. It didn't
and it is really nice - so FAU gets that one. And its trace is really fine.
So I'm back to where I was at the end of last week with too many scopes.
Most of the problem seems to be with "parts" scopes.? If I got one that
actually didn't work it would be what I'd expected, but the damn things
keep showing up with nothing serious wrong with them. And I cannot bring
myself to scrap a working scope.? I doubt if any of you can either.
What am I missing?
