Re: Medical stimulator
I have a muscle stimulator made by Multitone.It has 4 valves, 3x EF91 and a PL81 which I guess is part of an HT stabiliser.l mean to draw the circuit one day.Probably dates from the 50's.There is paperwork with it.In a wooden box,well made and heavy,there is a mains transformer and 2 large inductance blocks with tappings for the pulse rate and width.Les
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