flickr by sustainedtone"My old dudes. $100. Many tones were made."
Rolls MO2020 Testoscillator Generates Sine and Square Waves at Variable Frequency Range from 20Hz to 24kHz

EVERYTHING SYNTH
flickr by sustainedtone
via this auction (more shots there)
Nice bright vacuum flourescent display with no burnt out digits.... all connection work as they should with no crackles, loose connections, no unwanted noise from outputs...nice and quiet...no hiss...no white noise from aged parts....Volume pot is nice and tight still. It really does sound as good as it would have the day it left the factory"










