There is a very interesting interview with Gen fields on the GFI web site.
http://www.gfimusicalproducts.com/Artic ... rticle.htm The relevant section starts at part #2
It is most interesting to read about the trials with hydraulics.. Whatever became of the test bed guitar ?
In 1963 myself and Lawrence Maciver were experimenting with both hydraulics and solenoids.
Lawrence was an aircraft technician in Bristol.
We manufactured the "Custom" Brand Pedal Steels. (Purely mechanical, but with the option of a photocell pickup that gave an almost perfect sine wave output)
Later (1965) John Birch and myself conducted tests with a solenoid system, but found it too noisy, although we did develop a few nice pickups..
As a point of interest in a completely different direction, I wonder just how many Technically minded Players/Builders have read the Gene Fields interview.
It's littered with ambiguous typographical errors, LIKE:-
"Another advantage of this system was the fact that the pedal spots were built into the changer, eliminating the possibility of thermal expansion and contraction in the changer.
What did they mean to say ?Maybe, "Another advantage of this system was the fact that the pedal STOPS were built into the changer, eliminating the possibility of thermal expansion and contraction in the linkage mechanism affecting pitch ADJUSTMENTS."
And statements like "Standard Accessories: Hard shell plush lined case, cord, polishing cloth, rubber-tipped telescoping tubular steel legs."
Since when have legs been a accessory ?
I'm glad the legs were ordered with mine, I'd have hated to play it on my lap.. over 50lbs dead weight is not to be endured unless QUITE Warm.
And this Puzzling statement "Instrument can be tuned with the right hand while holding a chord with the left."