Based on the LTC3862, this circuit consists of a DC-DC converter capable of operating with input voltages lower than the desired output. MOSFET admits equivalent.
This circuit uses two Raytheon RC4558 operational amplifiers that are similar to the 741. The...
This audio amplifier circuit is from Ibrape's technical documentation from the 70's. The BC177 can be...
This progressive circuit has a lock allowing coded activation. We found this configuration in...