Employing a unijunction and a triac of the era, this 1964 Electronic Design circuit uses a diac to trigger the Triac.
This circuit for the medium wave range was published in Radio Electronics in February 1958. The...
This circuit turns a relay on or off by touching the sensors or by connecting sensors at these...
This circuit, for a bulb of 6 V up to 200 mA, was found in an old Argentine publication of the...