This circuit was found in a Philips documentation from 1966. The circuit provides 1 mW with a power supply of only 1.3 V. Transistors support current BC series equivalents.
This circuit was found in a 1980s documentation. The IC is the 7400 and should be powered with 5...
This CMOS version of the force gauge was found in a 1983 publication. In the CMOS version, the...
This 48 V circuit with a capacity of up to 105 V was found in a 2005 Linear Technology manual. The...