This reflectometer or standing-wave ratio meter (SWR) was found in a 1980s American documentation. The diodes support general purpose equivalents.
The circuit shown in the figure activates a small indicator lamp that will start to flash when the...
This powerful regulator, shown in the figure is for 5V (TTL) is suggested by Motorola and makes use...
This circuit is from a 1970 publication, having been implemented with germanium PNP transistors. We can...