50 MHz Bandpass filter
The last band for this filter was the 50 MHz band. With 6 turns inductor and a 22 pF capacitor it just didn’t work. Increasing the turns to 7 made things work. Smaller capacitors would have been better but these were not available in my junk box. If you want to try 8 turns and 10 pF would be a nice try.
The following plot. Vertical 10dB per division horizontal 4 MHz per division.
If you want to read the original article, please click HERE
A 70 MHz version can be found HERE