Found in the February 1990 Radio Electronics issue, this sophisticated 100 MHz probe uses a period display module. The circuit has an external power supply.
We found this circuit in a European schematic manual from the 1980s. The circuit is still current, and...
This circuit is basically the same configuration as the previous one with a power stage with...
This positive voltage regulator with 70 V output was found in a National Semiconductor manual from...