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.
This zero-crossing switch circuit was found in documentation from the 1990s. GE's PA424 is the...
This circuit is from a 1964 Electronic Design, appearing in this section and website with...
This monostable circuit uses one of the two flip-flops available on the CMOS 4098 integrated...