H Bridge Current Monitor (CB5393E)

We found this circuit in a 2005 Linear Technology manual. Observe the component values and operating current range.

Continuity Tester (CB4351E)
This circuit was obtained from an English magazine from 1977. The magazine no longer exists, but...
4-band microammeter (CB8210E)
Found in a 90s Radio Electronics this circuit requires precision resistors in the dividing...
Impedance Adapter (CB14897E)
This circuit consists of a pre-amplifier for high impedance microphones. The circuit uses a FET...