We found this circuit in a 1972 documentation. The transistor, in fact, is a unijunction that can be the 2N2646. The bipolar transistor is the BC558. With the values indicated for the components the ramp can have frequencies between 100 and 4000 Hz.
We found this circuit in a 1972 documentation. The transistor, in fact, is a unijunction that can be the 2N2646. The bipolar transistor is the BC558. With the values indicated for the components the ramp can have frequencies between 100 and 4000 Hz.
