This 10 kHz filter was obtained from an article in Electronics Now magazine in February 1995. The power supply is dual and other equivalent operating conditions can be used.
This is the receiver for the previous circuit found in the November 1991 Radio Electronics...
This circuit was found in a Popular Electronics from the 90s. The components admit equivalents and the...
This circuit for the car can be found in other versions in this section. This is from an 80's...