Based on an LM36000 OTA this circuit was found in the July 1988 issue of Radio Electronics magazine. It covers frequencies in the range of 45 Hz to 45 kHz.
This circuit makes use of a 741 single source operational amplifier to measure resistors on a...
Using a 741 op-amp this circuit high-pass to 10 kHz was found in the February 1995 issue of...
This circuit can be used in physics experiments, in ionization and in several other applications. The...