Basically operates as a Palm Pedal, but on a push-pull/throttle cable connected to a foot-pedal.
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Deke Dickerson wrote: There was a really hot guitar player in San Diego named Tommy Turman that always claimed he invented the Bigsby palm pedal in the 1950's. Well, I knew that the actual Bigsby palm pedal didn't come out until the late 60's under Ted McCarty's ownership, so I always thought he was just pulling my leg.
Last year, I decided to press him further about it, and he then told me that he had invented this thing that used a foot pedal and a motorcycle cable-wire to control the b-string, like a B-bender but with a foot pedal. I asked him if they ever made any and he said maybe 10 or 20, that it never actually went into production.
He also told a cool story about going to see Chet Atkins with Paul Bigsby in about 1957 when Chet was doing a show in Los Angeles. Of course Bigsby already knew Chet so they got backstage and Bigsby and Tommy demonstrated this thing. Chet said it was cool but that it should be adjustable for either a half step or a whole step change, because at the time it could only do a whole step change. Pretty cool, huh?
Except up until I saw these links, I had never actually seen one before, and wondered how it looked like! Now I see it was actually called the "True Tone Changer" and that it appeared to clamp on the regular Bigsby tailpiece.
