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Refugee · 13th May 2019, 2:42 pm

I would just feed it with a 68 ohm resistor and add a capacitor if there is not already one on the board.
If it takes less than 30ma it will just find its own voltage and settle.

13th May 2019, 2:42 pm	#6
Refugee Dekatron Join Date: Apr 2012 Location: Worksop, Nottinghamshire, UK. Posts: 5,554	Re: Deriving 3v at 30mA from 5V Supply I would just feed it with a 68 ohm resistor and add a capacitor if there is not already one on the board. If it takes less than 30ma it will just find its own voltage and settle.