This blog post is a record of my notes made while repairing an HP 3438A Digital Multimeter I had picked up last year at a local electronics swap meet. The 3438A is a 3.5 digit HP-IB controllable multimeter. It has five selectable functions: DC Volts, AC Volts, DC Amps, AC Amps, and Ohms. Of these five functions, three can be auto-ranged: DC Volts, AC Volts, and Ohms.
from Dangerous Prototypes https://ift.tt/3gbtWW5