This circuit was found in Texas Instruments documentation from 1968. The transistors are from that time, admitting modern equivalents. The response ranges is from 20 to 20 000 Hz.
The circuit we use makes use of Linear Technology's LT3080 (www.linear.com) which consists of a...
This microcontrolled null adjustment for operational amplifiers was obtained in a Linear...
This is the receiver circuit for the previous transmitter. The circuit has a programming key to...