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> Anyone know of a simple way of producing an AC voltage standard > suitable for general workshop use without reference to another one? > About one percent would be good enough, wave shape and frequency > accuracy not important (wash my mouth out). I have a Weston Cell for > DC voltage calibration, a Rb one for frequency but nothing for AC > volts. Perhaps there is a chip out there that clocks between accurate > limits that I could use as a source? Modern CMOS drivers are very close to rail-rail for low loads. So for quick/dirty, I'd just look at a handy clock signal and assume it goes from ground to the power supply. Be sure you don't look at one with a terminator, aka heavy load. Series termination would be OK. TI says for their HC04 at 4.5 V Vcc and 20 uA load, 25 C: Min 4.4, typ 4.499 I like the DAC suggestion. -- These are my opinions, not necessarily my employer's. I hate spam. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
