This interesting circuit of the 50s uses a fluorescent lamp to obtain a stroboscope useful for the rotation of motors. The circuit uses a power valve to control the 10W fluorescent lamp.
This amplifier became famous in the 1970s, it was sold in kit by Ibrape, Philips subsidiary for...
This alarm circuit is from a 1987 publication, however the components used are still modern. The...
By connecting a common diode in series, it is possible to add temperature stability to the...