Re: Tek 2467B
How many people would simply slap a calibration stickertoggle quoted messageShow quoted text
on a scope and charge for the calibration?
Using yourself as the minimum standard by which all
technicians, and calibration shops, operate is rather
That most of theses scopes haven't been in the hands
of cal lab for decades makes it even more likely that
the calibration constants are not worthy of saving.
Sure, some of the values may be right on, but which
are those? Which are wrong? You really can't tell
until you calibrate the scope.
How many of the guys on this group have replaced a
vertical attenuator, vertical hybrid, trigger hybrid,
a couple of 10K precision resistors on an A5 board,
a tripler, or perhaps even an entire EHV power supply
board and never once thought about doing a calibration?
Show of hands?
Michael A. Terrell wrote:
How many people would calibrate a scope, before verifying the scope didn't have bad caps? The S/H cap would be the least likely to fail, compared to the average lifetime of the electrolytics. Also, most of the scopes ending up in private hands haven't been in a cal lab for years or even decades so recapping the electrolytics would return it to the condition it should have been in at the last calibration. At least, anything I repaired would have been done this way.