Schmitt Trigger 7400 (CB22419E)

This low hysteresis circuit was obtained from old documentation. The circuit must be powered by a voltage of 5 V.

9V FET FM Transmitter (CB14877E)
This small FM transmitter, with a few tens of meters in range, is powered by a 9 V battery. The...
1kHz High Pass Filter (2) (CB11556E)
This filter was obtained from the Texas Instruments Linear Circuits Applications. It makes use of...
Audio Oscillator Driven by a SCR (CIR832E)
Figure 1 shows a simple audio oscillator driven by the SCR When the sensor is closed. The circuit...