FK625 Tone COntrol (1569 views)
I've assembled and solderedFK625 tone control circuit and have checked and all components appear to be correct and welded correctly. The bass control not working as expected, when I turn bass control potentiometer to clockwise about 50-70% it starts to generate ‘knocking sound’ like somebody knocks your door very rapidly. Volume and Treble controls works as expected.
2018-11-09 20:52 #1
Generally they go from little or no effect at ~1k to max effect at ~80-100Hz in the bass and ~10k in the treble. Max boost/cut is usually in the range of 6-15dB; however, it can vary a lot.