Re: DC heater supply valve tester.
I have a couple 300V 100mA supplies, voltage and current limited for playing around with tube circuits. And a triple output bench supply 0-20V 0-2.5A 0-10V 5A.
eventually i will build a 1.25V-20V 5A unit, for my tester project. this was just a little prototype that i put together out of things i had laying around. The aim of which was to design it so it can be used in new designs.
I just finished a Layout for a prototype, single sided, so the electrolytics will all be mounted on the backside
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