6W amplifier with TDA2613 2 (CB15394E)

This circuit uses a simple power source, having been found in the Philips Databook of 1990. Information on performance is given in the table below.

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Power Control (CB24808E)
This circuit, to control air conditioning systems, was found in July 1984 Radio Electronics...
Up to 10 hours timer (CB20360E)
Using bipolar, FETs and unijunction this long-lasting timer can reach 10 hours with good quality...
Wien Bridge Oscillator CA3140 (CB4923E)
We found this circuit in an old American documentation (80's). The circuit generates sine signals...