This optical theremin was found in a 90s Hands-On Electronics. The basic frequency is given by C1 and the output is made in a speaker through a small output transformer.
March 2017 - Mouser Electronics is sourcing the new Bluetooth Driver CC2564 from Texas...
This circuit is from an 80's publication. It makes use of small 6 V x 50 mA incandescent lamps....
This circuit makes use of the Linear Technology LT6100. We find it in a 2005 company manual. The...