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In Reply to: RE: I'd Rather Use a Genrad posted by used-hifi on February 10, 2017 at 09:02:32
"Hi TK my particular model was compared directly to the very expensive agilent units the difference was .115%!"
Getting an analog circuit to hit a specification is rather easy. Keeping it there in light of environmental as well as component aging is a totally different matter.
That's what you buy with HP, Tektronix, and other established test equipment manufactures.
Follow Ups:
yeah you go ahead by them dinosaurs of test equipment and keep paying to have then calibrated every other year...
Mine just hit a button and it calibrates itself!!
plus its NEW not some 20 year old machine that takes 20 mins to stabilize before you can even use it. you guys are missing the point its as good as the expensive stuff and if it dies in 5 years they will have an even better unit i can buy just as inexpensive and be good for however long.
really you have to look at the bigger picture plus if there was a competing USA company that made a similar product/similar price I would be all over it but we dont and so my money goes much farther in this hobby
you guys have fun
Lawrence
Against what? How stable is the calibration reference?Hint, why did Dynaco choose 1.56 volts for the bias setting in their famous amps. That required a non standard cathode resistor. Why 1.56 volts?
It's all about the accuracy of the reference. Otherwise any so called calibration is relative.
Also, you only need to calibrate those old dinosaurs once a year if you are doing work that requires traceable calibration certificates. That doesn't mean they need yearly calibration to remain accurate - and surly accurate enough for hobbyist audio use.
Edits: 02/10/17 02/10/17
~!
The Mind has No Firewall~ U.S. Army War College.
Alkaline batteries did not commercially exist back then.
dave
Am aware Dave... merely implying that alkaline tend to run higher voltages... in my experience.
The Mind has No Firewall~ U.S. Army War College.
Even this well-considered argument is captive to the necessity of the unit remaining functional. Chinese products carry an inherent risk of default in that regard. :)
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Buy Chinese. Bury freedom.
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