Theremin.... YA! Kyle Swanson Daniel Hamilton Laurel Hardiman.
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Transcript of Theremin.... YA! Kyle Swanson Daniel Hamilton Laurel Hardiman.
Theremin.... YA!
Kyle SwansonDaniel HamiltonLaurel Hardiman
The Hand
The Antenna
NPN-Transistor
C
B
E
Waves
Products
Sin(kx) + Sin(lx)
= ⅟₂∙x [ Cos(k + l) + Cos(k – l) ]
20Hz-20,000Hz
A little bit o’ fact…
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Leon!• Born in Russia in 1896• Began playing with electricity at the age of
7 and had his own laboratory at the age of 17
• He was pretty much a genius…• He was tasked with developing a proximity
censor, and voila! • Created the “etherphone” in 1920 and gave
his first performance to a handful of collegues
• Was termed the “Termenvox” in the Soviet Union, “Thereminvox” in Germany, and “theremin” in the USA.
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Even this guy liked it!
• Lenin was very impressed by Theremin’s device• Believed Leon’s electronic skills could be used for
the good of Communism• He even took lessons
The original form of Electronic Music
• The theremin was patented in 1928 in the USA• Though not a huge hit, Clara Rockmore helped
popularize the instrument• In 1930, Leon gave a concert at Carnegie Hall with
10 other thereminists. It all fell apart.• In 1932, Leon conducted the first ever electronic
orchestra• Theremin began to lose popularity until the 1950’s
The RCA Theremin
Theremin Extravaganza!
Enter Moog!
• Robert Moog began building theremins while in high school
• He started selling kits so people could make their own and now Moog Music sells top-quality theremins
• Another burst in popularity occurred when in 1994, a film was made called “Theremin: An Electronic Odyssey”
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Famous Performers
• Clara Rockmore• Lydia Kavina• Pamelia Kurstin• Armen Ra
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Similar Instrument
• In Good Vibrations (the Beach Boys) They are actually playing a Tannerin
• Similar, but has a slide and the keys are only for visual aid
Where you may have heard one
• Monster House• Ed Wood• The Day The Earth Stood Still• Jimmy Page used a variation of the theremin for
“Whole Lotta Love” and “No Quarter”
The ProcessThe Trials, The Errors,
The Advancements, and what turned out
to be setbacks disguised as
Advancments.
Inductance How does one measure inductance? One way is to use a multimeter that has ability to
measure inductance. EASY PEASY BRAIN DEAD WAY!!!
However with out a special multimeter, that allows the user to be brain dead, there is a method involving network analysis to measure inductance.
(This is not to say that one should not use or obtain a multimeter with the ability to measure inductance. Quite frankly being brain dead once and while doing repetitive work is not such a bad thing)
The non-Zombie Way
Step 1: Look for a really god awful looking equation, that looks to be over ones head.
Step 2: Go to take a break, soccer anyone? Step 3: Widdle it down from a gross equation to
an understandable, efficient, useable, easily applicable, beautifully widdled equation. Otherwise known as U.E.U.E.A.B equations. DUhhhhhh.
_V 2
V 1_= [ _i _ L__R_ i _ L_
__ _i _ L__R_ i _ L_
]_1/2_
The U.E.U.E.A.B equationof the gross equation.
Now that we have this U.E.U.E.A.B equation. Our next step is to construct ta circuit that we can take advantage of with this formula.
L= R
_2_ F _3_
Network Analysis
This circuits needs:
1. A resistor of known value.
2. A function generator to push a frequency through the circuit.
3. A bunch of inductors to test. For with out these this whole set up would be in vane!
L= R
_2_ F _3_
Our Findings
Using a resistor of 480 Ohms, we calculated the Henries for several of the hundred or so nameless inductors we were searching through.
L= R
_2_ F _3__ L=44.1
f
