We found this circuit in a 1980s documentation. Equivalent components can be used. The circuit senses temperatures in the range of 0 to 50º C and uses a transistor as sensor.
Other series amplifiers such as the MC3301, MC3401 and LM2900 can be used on this circuit. We...
We found this circuit in a 1989 publication. Its purpose is to produce noise in the VHF or UHF...
This low-frequency relay oscillator was obtained from an article in Electronics Now magazine in...