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Why we choose DC-DC converter as power supply ?
Why don’t we use 100V or 230V ac and use doubler/quadrupler, then rectify/filter it ?
What is the effect of excessive power supply ripple on GM tube ?
My 2 cents:
2. More precise
4. stable supply
6. Less noise from the line
Excessive ripply will cause misreadings/ counts on your GM tube AND can harm your tube or other components.