I am currently working on a digital clock using 8segement VFD tubes. I am using ten DG10Q1 tubes.
For the filament / heater, each tube requires a 0.6 - 1 V supply with up to 50 mA consumption.
I want to be able to specify the voltage from the Arduino so I can dim the clock if it's dark.
So far, I've only stumbled across voltage regulators which can do 1.5 V (e.g. TL497A) but nothing less.
I think I have to come up with some transistor circuit? Can anyone give me some tips about this, I can't find anything on the internet.
Thanks in advance.