2jakes
I'll Lock Up
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- 9,680
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- Alamo Heights ☀️ Texas
Where are the "Snakebite Holes"?
Makes me feel as if I'm sitting at the Duo-Art playing the Paderewski roll.
It's integrated almost invisibly with the treble and bass
subduing knife valve arrangements. Additional valves are provided
inside the two chambers which when actuated by the appropriate
"snakebite" perforation, "short-circuit" the choke effect of the hand-work
knife valve which is subduing (choking the suction) on that half of the stack
These automatic valves are driven from two primary valves which
are usually housed in a small additional box mounted on the stack.
Sometimes where four-hole tracking is provided the valves for that
are housed in the same box, and also the auto sustain (and sometimes,
hammer-lift) primary as well, so the box can get quite complex. If
a THEMODIST ON/OFF switch is provided in the spoolbox, it controls
suction to the Themodist primaries -- but quite a lot of instruments
never had this which is why you can't see the "Snakebite Holes".
Btw:
Amazing!
To be able to play the Paderewski roll while sitting at the Duo-Art.
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