Found in a 1967 General Electric documentation, this meter uses Nixie tubes, popular at a time when LED and liquid crystal displays did not yet exist.
May 2016 - Mouser Electronics has in stock the new Grayhill 5-inch touch displays type 3D50. The...
This 80's Exar circuit has a carrier detector for frequencies up to 500 kHz. The circuit uses a...
The configuration shown was found in a 1980s American book. The supply voltage is 14 V and the...