Theremin for Tube Enthusiasts, Page 5 |
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OPERATION |
The results
obtained depend more on the ability of the operator than on built-in limitations within the
unit itself. A good “ear” for music is a must, of course, but, in addition, a moderate amount
of skill is required, particularly in finger or hand dexterity and movement. The latter is
learned only through practice. For a start, here are the basic “playing” techniques.
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To sound an
individual note, first move the “pitch” control hand to the proper position near the pitch
antenna (as determined by practice) to sound the desired pitch. Next, move the “volume”
control hand quickly to the proper position near the volume antenna to sound the note at the
desired level, then away after the proper interval to sound an eighth, quarter, half or full
note. |
To sustain a
note, hold both hands in position. The note volume may be increased slowly by moving the
“volume control” hand slowly nearer the volume antenna, reduced by moving it slowly away.
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To “slide”
from one note to another, hold the “volume hand” fixed in position and move the “pitch hand”
nearer (or away from) the pitch antenna. |
To produce a
vibrato effect, hold the “volume hand” fixed in position and shake–or tremble–the “pitch hand”
at the desired rate. |
To create a
tremolo effect, hold the “pitch hand” fixed in position and vibrate– or tremble– the “volume
control” hand. |
Tremolo and
vibrato effects can be produced by simultaneously rapidly moving both hands back and forth.
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If you’ve used
triangularly shaped control plates as the antennas plates in your instrument you’ll find that
a given hand movement has less effect on operation near the narrow (pointed) end of the
triangle than near its broad base. |
Practice is important! |
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Schematics |
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CRAIG KENDRICK SELLEN
HIGHLAND MANOR
164 SOUTH MAIN ST.
CARBONDALE PA, 18407-2655 |