This circuit was obtained from the 1976 Siemens Integrated Circuits Manual. It is the circuit for applying the TBA400 as a broadband amplifier.
Standing wave ratio or SWR is an important measure of whether all power from a transmitter is being...
The circuit presented is from LinearTechnoloy Applications from 1993. Semiconductors are uncommon and...
This circuit was found in a 90s Popular Electronics. The sensor can be any phototransistor. ...