Audio Notch Filter For audio frequencies 100Hz – 10KHz

A variable notch filter with both high and low pass filters.

notch filter

At first glance this circuit looks fairly complex, but when broken down,can be divided into high pass and low pass filter sections followed by a summing amplifier with a gain of around 20 times. Supply rail voltage is +/- 9V DC. The controls may also be adjusted for use as a band stop (notch) filter or band pass filter.

Click here to submit your review.

Submit your review
* Required Field

CZH Fm Transmitter
No.1502 Room HuiLan Building No.273 Huanpu Road Guang ZhouGuang Dong510620 China 
 • +86 13602420401