This digital thermometer circuit with MA1026 module was found in February 1981 Radio Electronics magazine. Note the special transformer voltages.
September 2017 - Broadcom's AEAT 8800 Q24 magnetic encoder can be obtained from Mouser...
This circuit is used to cut the “click” in the loudspeaker of amplifiers when they are turned on....
This small FM transmitter can be powered by solar cells in the range of 1.2 V to 6 V. Its range...