This General Electric circuit, in a documentation from the 1960s, allows the use of high resistance resistive sensors with unijunction transistors in a relaxation oscillator.
This oscillator provides a 1 MHz rectangular signal determined by the capacitors used. The circuit...
The circuit transistors, found in a 1974 documentation, may be the BC548. The circuit is used in...
The two previous circuits show the INA185 a current sensing amplifier in basic applications. This...