NLS MS-230 Oscilloscope
A donation from the estate of Warren Stearns.
The Non-Linear Systems NLS MS-230 Miniscope was manufactured in the late 1970s. It is a two channel 30 MHz portable oscilloscope powered by an AC charger or the internal rechargeable lead-acid batteries.
The dual Inputs will handle up to 450 volts. It came with a carrying case that holds the miniscope, charger, and probes. The miniscope measures 6 1/4" x 2 5/8" x 8" deep.
Ours shows the common symptoms of bad lead-acid batteries. It came with replacement batteries which look ancient. The replacement lead-acid batteries are still available.