Wireless Alarm Transmitter (CB25208E)

We found this circuit in the May 1989 issue of Radio Electronics magazine. The circuit uses infrared LEDs in a high frequency link with the 555.

Microphones PMO (COM190E)
January 2017 - Mouser Electronics already has the new PMO Sonalert microphone elements from...
Voltage Regulator LM3900 (CB4043E)
This configuration makes use of an LM3900 transconductance operational amplifier. The transistor can...
SST LLE Series Liquid Level Sensor Switches
SST LLE Series Liquid Level Sensor Switches Available through Mouser Electronics, these solid...