Kuba Ober wrote:
Kuba wrote:
Well, if all you care about is *basically working*, then I agree. But then you don't need a 7603 either. A random 7603 with random plugins will *basically* work, but most of the time it doesn't really perform as a dependable 100MHz instrument. Maybe it's my luck, but 90% of the plugins that I bought in lots on eBay showed signs of being seriously miscalibrated, and two of my mainframes (7603 and a 7633) were quite miscalibrated as well; their pulse response was completely off limits and you need the standardizer for that.
Cheers, Kuba
Kuba,
The origin of many instruments on eBay are government surplus, or surplus acquired by someone with no calibration skills. In the first case, metrology (instrument calibration) technicians in gub ment would screw up an instrument they are trying to dump (or are instructed to do so) so it gets tagged "unusable". The other case results from uneducated people trying to fix something that ain't broke.
Bill Roberts
