We found this circuit in 1969 American documentation. FETs admit equivalents, as do transistors. The circuit can be used as a shield.
The supply can be between 4 and 10 V in this circuit and R4 is necessary when the supply is less...
This is an integrated recommended for portable amplifiers, recorders, and battery powered radios. It...
Found in American documentation, this circuit generates linear sawtooth signals using a constant...