We found this measurement circuit with a logarithmic scale in an Electronics Now from November 1995. The circuit uses an integrated component from that time.
This amplifier is suggested by Sanyo, for radio and recorder applications and makes use of a...
The Texas Instruments TPS80 LDO (Low Dropout) series (www.ti.com) can provide output voltages from...
The circuit shown is from a 1974 integrated circuit manual. In it we have the monostable...