First light on the #Tektronix RM503!
Right to Repair is inherent in these old devices. The companies often publish, for free, the manuals and circuit diagrams.
@thetimberwoof.bsky.social
@thetimberwoof.bsky.socialFirst light on the #Tektronix RM503!
Right to Repair is inherent in these old devices. The companies often publish, for free, the manuals and circuit diagrams.
@thetimberwoof.bsky.socialMy ancient #Tektronix RM503 #oscilloscope is showing signs of life.
It was missing its high-voltage diode, but with it installed it hisses and the power supply gets very unstable. That said, the CRT did show signs of life. I suspect leaky filter capacitors.
