Based on the Linear Technology LTC2054, this -48 V circuit was found in a 2005 manual. The circuit is powered with 5 V and can be used as a shield.
Rapid Prototyping Boards for 32-bit Applications Include Peripherals, Easy-to-use Interface and...
The circuit presented emulates an OR gate with the LM3900, operational transconductance amplifier....
This circuit was found in an English magazine from 1979. The magazine no longer exists, but the...