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Original Message
RE: MUCH Less Than 100mA Will Kill
Posted by Triode_Kingdom on January 7, 2017 at 11:30:57:
"do we need to consider that the voltages in use for filament supplies might be dangerous too?"
The supplies I use are isolated from earth ground. There's no current path unless I touch both output leads at the same time. A 30V pk-pk square wave at 66kHz might be uncomfortable or even painful, so I try not to do that. :)
It's also worth mentioning that at some frequency below 1MHz, skin effect begins to take hold. AC current won't travel into the body, but instead flows near the surface. Depending on the frequency, this will create a burn, rather than a shock.