This circuit uses a 555 (according to the diagram) to generate 50 ms tone bursts at a frequency of 1.5 kHz. The circuit is from an 80's Electronic Design.
May 2017 - Mouser Electronics already has Microchip's new MCP14A0451 and MCP14A0452 integrated...
The figure shows how to obtain a capacitance digitally with 4066 switches. The table shows the...
This low power, low voltage circuit was found in old General Electric documentation. Transistors may...