"Tauno Voipio" ** It's not actually.
Seems like a ballsed up version with missing resistors that will be become
unstable at full treble.
** And like most stuff on hobby web sites it is bunkum.
The "Baxandall" tone control design was published in Wireless World in
952 - it used valves. The network is different to the one in the link above
and produces variable turnover at both the high and low ends of the range.
- posted 10 years ago