This circuit uses a transistor as a sensor and operates in the range of 0 to 50º C. We found it in old documentation. Operational equivalents can be used.
This remote listening device was found in documentation from the 50's. The transistors used are...
Found in a 2005 Linear Technology application manual, this circuit provides outputs from a current...
Found in the September 1992 issue of Radio Electronics magazine. This circuit generates pulses that...