This circuit is from Mullard 1969 documentation. The circuit operates at a relatively high supply voltage and has a 10 Vpp output. The transistors are of the time, but admit equivalents.
September 2016 - It can be obtained from Mouser Electronics the new ADC AD7779 from Analog Devices with...
This well-known siren configuration using complementary transistors is from a 1980s documentation. The...
This Linear Technology cold cathode fluorescent circuit operates on power from 4.5 V. The...