This amplifier with the LM1098 and LM101 by Motorola from a 1990 manual can be designed with more modern operations. The bandpass for small signals is 3.5 MHz and the power range is 250 kHz.
This regulator can use BD'136 as the main transistor and as a reference next to a BC548 zener. The...
In the 110 V network, capacitors of 200 V or more and in the 220 V network, capacitors of 400 V or...
The circuit shown timing the drive of a motor using an optical coupler. The diode bridge can be...