This circuit allows you to read resistors up to 20 M ohms, converting it into voltage. The circuit is from the 90s. The operational ones used admit modern equivalents.
Mouser Electronics is announcing the availability of the new voltage regulators with low dropout...
This circuit is from a 1982 publication but can be assembled with BF245 for Q1 and BC548 for Q2....
This circuit was found in documentation from the 1970s. It eliminates contact bouncing, providing...