Re: LED Power Output Indicator #ubitx

Howard Fidel

It isn't a voltage doubler. You need a second cap for a doubler. The Diode to ground keeps the load symmetrical (more or less) for positive and negative excursions. There is no need to double the voltage, there is plenty of voltage and current available to light an LED. 


On 7/3/2018 11:25 PM, R. E. Klaus via Groups.Io wrote:
Doesn't the 2 diodes and the cap form a rudimentary voltage doubler similar to those used in old AC/DC radios?

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