Bargraph Indicator for U237B Transducer (CB25443E)

This circuit was found in the February 1992 Radio Electronics magazine. The circuit drives 5 LEDs from a resistive transducer.

50 kHz to 10 MHz Oscillator (CB25682E)
The frequency of this oscillator depends on the crystal used. The transistors are general purpose. We...
Capacitance Bridge (CB520E)
You can measure capacitances across a large range of values using the AC Power line frequency as...
Higher Current Voltage Variator LM3900 (CB5058E)
The circuit of the figure serves the same purpose as the previous one (CB5057E), but has a...