This version is from an old 80's documentation. The SCR can be the TIC106 and the unijunction transistor the 2N2646. The 560k resistor can be replaced with a 470k potentiometer in series with a 47k resistor for time adjustment.
This version is from an old 80's documentation. The SCR can be the TIC106 and the unijunction transistor the 2N2646. The 560k resistor can be replaced with a 470k potentiometer in series with a 47k resistor for time adjustment.
