Blueguitar wrote:The thing is, a lot of that old rockabilly stuff has loads of Boo Wah stuff going on, which sounds great but how the hell do you do it? I always understood that it's done with the tone control but I can't get anything like it.
I'd welcome any advice
Hi there. Some of the guitars made in those days have a spring loaded "push-for-on" button that switches in a capacitor to give a massive treble cut, just like suddenly turning the tone control to full bass position. Let it up and it goes back to the tone set by the control, so you "stab" at it to get that repeated boo-wah sound

. Certain guitarists managed to get the effect by actually turning the tone control with the inside of a curled little finger - the way some rock guitarists do that so-called "violining" effect with the volume knob.
You might get it with the likes of those old Fender pedals with the volume on a rocker and tone on side-to-side rotation. That might work too slow to sound right, but I bet you can make an external tone control with a defeat button that will do it.
Whereabouts do you live? I've got an old twin-8 with that button (red button - between the knobs, see below) and you're welcome to come see and have a go.
(click to enlarge)
Also, if you can catch Rod King playing at any of the steel guitar meetings, he can do loads of those steel guitar tricks; boo-wah, slamming the bar, tipping the bar etc.etc. on his Rickenbacker S-8. He's just been up to the NESGF and showed those skills.