Found in documentation from the 1980s, this circuit uses a SG1524. It is an uncommon integrated circuit nowadays. The circuit provides a current of 20 mA with a symmetrical voltage between 15 and 18 V.
The circuit in the figure causes an incandescent lamp to flash at a speed determined by the...
The circuit shown can drive loads from 500 mA to 2 A, depending on the transistor with the TTL or...
Found in American documentation from 1969, this circuit operates in the frequency range 10 to 150...