jaygunn
Active member
Title says it all. I am planning on building a lab DC power source with very clean output, using a linear power supply terminating in an LT3080 LDO linear regulator. I want really low ripple and noise.
It would make nice eye candy to display the voltage (especially if I make it adjustable) with a very affordable LED voltmeter like the ones on eBay for under $10. But will a part like that add a lot of noise to my clean DC? Most of them say 100K input impedance FWIW
It would make nice eye candy to display the voltage (especially if I make it adjustable) with a very affordable LED voltmeter like the ones on eBay for under $10. But will a part like that add a lot of noise to my clean DC? Most of them say 100K input impedance FWIW