This circuit is from 1975 documentation. Transistors such as 2N3055 can be used and the transformer is of a special type. R1 is 200 ohms and R2 is 10 ohms.
The operational amplifier is not very common today, but in its place an equivalent, even of...
We found this circuit in a documentation from 1966. The transformer is output for transistors. Resistors...
This circuit in the National Semiconductor Fast IC Power Transistor manual uses a special power...