This PUT oscillator circuit has a frequency of 1 Hz. We find it in a General Electric documentation from the 80's. A recommended application is on flashers.
Using only one integrated circuit this control was found in an 80's Electronic Engineering. The circuit...
We found this circuit in a 1975 radio amateur documentation. The circuit uses TTL technology and...
The transistors of this circuit found in an English 1980s documentation may be the modern BC548...