This circuit for controlling high power in the AC network was found in a Motorola documentation from 1968. SCRs can be modern equivalents according to the load power.
We can implement this filter with more modern equivalent operational amplifiers, since the LM110 is...
This stethoscope or amplifier for hearing aid using a crystal headset and microphone was found in a...
The normal use of a 4520 as a divide-by-16 counter is shown in Figure bellow. In the normal...