This amplified speaker is from a Radio Electronics from September 1988. The power integrated circuit is from that time and the other components are still common today.
May 2017 - Mouser Electronics already has for sale the new Littelfuse SP2555NUTG diode arrays for...
The frequency of TTL square signal is divide by 5 with this circuit. Power supply is 5 V and the...
This dimmer for high-powered incandescent lamps was found in a 1967 General Electric manual. The...