Power supply problem?

[tw]

Originally Posted by glatt

I was really frustrated with it, so I tested it on a 6 volt lantern battery. It was bouncing around at almost zero volts the entire time.

Meter may not have been on its DC settings.

An autoranging meter will default to measuring AC voltage. A 6 volt battery measured on an AC setting would bounce about until it settled at zero volts. Something to check before binning that meter.

Analog meter may be good for harsh environments such as modifying AC house wiring. Measuring a battery for life expectancy. Or learning why/if a car battery is defective. Keeps an autoranging meter from falling into a car's radiator fan. Then you do not have to use words not found in the dictionary - such as "whoops".