Alan G3NYK, OK on the notch filter design, but for a high impedance load. I have often wanted to try a notch filter in a low impedance feeder, for such purposes as reducing a TV line oscillator harmo
Yes it does what it says on the tin ... I got a notch depth of 47dB. I used a Panasonic ELC08D101E coil available from RS Components part no. 233-5213. I unwound it and found it had 50 turns. Rewindi