If you can find a HP3245A - they can be had for about $1000 if you are lucky - you can can use it as a source for DC volts, DC current, AC volts and AC current (up to 1MHz). The main drawback is it's limited to 10V output unless you have the elusive 002 option which takes it to 100V. It's not intended as a calibrator but then it's not $25k like a Fluke 5720.
- Keith
