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.
Found in an old Elektor, this circuit uses two 7-segment displays to indicate the volume of an...
L1 and C1 determine the frequency of this Colpitts Oscillator. Refer to our section Mathematics...
This circuit is from Mullard 1969 documentation. The circuit operates at a relatively high supply...