This circuit was found in an English publication from the 70s, an article that teaches how to calculate instruments. The circuit is still current and can be built with an analog indicator of 100 uA.
This powerful transmitter for the 27 MHz band was found in a Japanese publication from 1961. The...
May 2017 - New sequencers UDC9090A for monitoring up to 10 power supplies from Texas Instruments...
July 2017 - This new Murata product is available from Mouser Electronics. It consists of a module...