This circuit generates short pulses. The transistor can be a 2N2222 or BC548 and the frequency is given by the resistors and the capacitor that can be changed.
This circuit is suitable for instrumentation applications having been found in an old French...
The short-wired circuit is suggested by National Semiconductor in documentation on the LM3909. The power...
The integrated circuit used in this application is a double 741 from SGS. The supply must be...