This bench circuit generates signals with frequencies determined by the settings and selected capacitors. The circuit was found in a Radio Electronics from January 1959.
We found this circuit in an English magazine from 1976. The magazine no longer exists, but just...
The figure shows a simple way to have emergency power for a 9 V circuit powered by a source. If...
Found in an Electronic Design from the 90's, this circuit supplies voltages according to the...