We found this circuit in an old documentation. The integrated circuits used are specific to produce effects and do not admit equivalents, being currently difficult to find.
Found in a Radio Electronics from May 1964, this circuit activates a relay depending on the supply...
Found in Radio Electronics from the 90s, this circuit uses a thermistor or NTC. The resistance of the...
September 2017 - Mouser Electronics is announcing that it already have in its inventories the new...