vol17 theremin m

8/13/2019 Vol17 Theremin m

1/61Instructions for Assembling and Operating

Parts in the Kit

Things you will needPhillips screwdriver (#1) 4 newsize AAalkaline or manganese batteries Do not use nickel batteries, oxyridebatteries, or rechargeable batteriessuch as nickel cadmium batteries toavoid the risk of dissolution of parts orignition in case of a short circuit andother mistakes.

CAUTIONPlease read the following instructions before assemblingthis kitUse caution when handling some pointed parts. Improper use may cause injury.To avoid the risk of suffocation, use caution not to swallow small parts such as screws.The point of the antenna is shaped like a hook. Use caution not to scratch your fingers with itand be injured. Also, use caution not to prick eyes with it.

Four size AA batteries are required. Improper use of the batteries may cause the generation ofheat, explosions or leaks. The following precautions should be taken:Do not use rechargeable batteries such as nickel cadmium batteries, cadmium batteries, oroxyride batteries to avoid the risk of dissolution of parts or ignition in case of the short circuitand other mistakes. Ensure that the positive and negative terminals on the batteries are facing the right way. If liquid that leaked from batteries gets in an eye, rinse it well in a lot of water immediately andconsult a doctor. When liquid stick to skin or clothes, wash it up with water immediately.Remove batteries after an experiment.Please read the assembly instructions and cautions carefully before using the kit.Instructions and cautions in this booklet should always be followed for safety. Do not use any

materials that have become damaged or deformed while in use.

Remove batteries after using the kit and keep these away from babies and children.

Note for screwingThe screws in the kit arethe type of screws thatcarve a slot in the plasticwhen driven in. A #1 Philipsscrewdriver is the right sizeto use. When screwing,press a screwdriver to ascrew vertically and turnfirmly. The right proportionof the power is 70 % forpress and 30% for turn. Aprecision screwdriver isdifficult to turn, so use asmall screwdriver that has agrip with a diameter ofabout 2cm.

actual sizeof a #1screwdriver

Instructions for Assembling and Operating

small screw(7)

screw with collar(4)

large screw(1)

upper bodylowerbody

leg (4)antenna holder A

antenna holder B

switch lever

back body

antenna

circuit board (already set)

battery box lid

tuning stick

Takes about 20minutes for assembling(The circuit board is already set.No need of soldering.)

The plastic materials used in this kitbody (rear upper lower), battery boxlid, legs: ABS (red)antenna holder A and B, switch lever,tuning stick: POM (black)circuit board: phenol resinVinyl chloride resin is used for thecovers of the lead wires.

The metallic materials used in this kitantenna: stainless steelscrew, metal contact: iron

speaker(covered witha cardboard)

Remove transparent protection films onthe lower body before assembling.

Theremin mini

= (Theremin in Russian)


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3Instructions for Assembling and Operating

3 .Fit the speaker in the backbody and fix with screwswith collar.

4 .Fix the antenna andthe metal contact tothe lower body with ascrew with collar.

1 .Attach theantennaholders to theantenna.

2 . Put the antennathrough the hole in theupper body. Put theantenna holderin. Slide the back body

in the groove of theupper body.

Hold the upper and lowerbodies firmly with fingers andscrew tight.

Attaching the upper3Make sure that thepositive and negativeterminals on thebatteries are facingthe right way.

4 .Set batteries in the battery box at the lower body and fitthe lid on.

Complete!

Cut a minimusical score onthe p.67 and putit on.

Fasten the screwsm i n d i n g n o t t otouch the speakerterminal.

Payattentionto thedirection.

Press andsnap them in.

screws with collar

back body

antennascrew with collar

wire

lower body

antenna

antennaholder B

antennaholder A

Pay attention not to beinjured with the hook at thetip of the antenna.

Hold the antennaholder with theseprojections.

Either side ofthe antennaholder can cometo the outer side.

antenna

upper body

backbody

lower body

groove

3 . Set the switch lever on the switch on the circuitboard. A Put the upper body on the lower body and fixwith the large screw.

Put the projection of theswitch into the hole in theswitch lever.

upper body

lower body

switch lever

switch

large screw

projection

hole

lid of the battery box

metalcontact

circuit board

circuit board

groove

Put the back body in the grooveand slide to fit in completely.

Remove thetuning stickfrom the lid.

Set the antenna in thegap.

gap

Payattention notto bend theantenna.


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antenna

Move your right hand and play C, D, E, F, G, A, B, Cwith your left hand fixed.

Let's Try to Play!

The sound is continuous and it changes when the hand

moves even if it is only 1mm move. Look for thescales patiently and carefully.

Swing the antenna whileplaying. Then the soundbecomes unstable andsounds like vibrato.

Put your elbow on thetable to stabilize.

Keep the lefthandstationary.

Move your playinghand as horizontallyas possible.

about two octaves

playing hand

b e e p !

Tuning isfinished!Keep your lefthand at theposition wherethe tuning isfinished.

It may be difficult totune right afterswitching on since thecondition of thetheremin is not stable.In such a case, leave ita few minuets afterswitching on and thenstart tuning.

a-1 a-2

b-1 c-1

f the volume isadjustedappropriately, youdont have to holdthe thereminwith yourleft handwhiletuning. Tryto make your lefthand free!

T w a n g !

5.Bring your playinghand to the point about20cm away from theantenna, that is, thepoint you want to makeit the zero point. At themoment, the thereminstill beeps.

Keep theplaying hand atthat point and dothe next step oftuning.

Don t movethe lefthand.

6.Bring down the lefthand that holds theroot of the leg slowlyand stop it at the pointwhere the thereminbecomes soundless.

Tuning is finished!

the extent of

the musicalperformance

Keep the playinghand at the pointwhere you want tomake it the zeropoint.

zero pointplayinghand

about 20cm

about 20cm

In case the sounddoesnt stop when youbring down your lefthand,

Oh, My Beloved FatherPuccini

From the New World mvt LargoDvorak

El Condor PasaRobles / Milchberg

5

If the sound doesn t stop though you bring yourhand away, turn the left volume to the left alittle bit and redo from 5. Use caution not toturn the volume too much.

The point of the antenna is shaped like ahook. Use caution not to scratch yourfingers with it and be injured.

Twang twang!Swing the antenna andenjoy making vibratosound.

MiniScale

Cut thesesscale alongthe line and

put these onthe musicstand of thetheremin!


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QMy theremin doesn t make sound.ACheck the assembly process.

Is the switch lever attached to the right place?Are the antenna and wires attached correctly?Is the connecter of the battery box set in the circuit completely?

ACheck the cone of the speaker.The transparent part of the speaker oscillates to make sound.If it is pushed with fingers and dented, it may not make clear sound.

A Check if the batteries are new.If the batteries are dead, change these with new batteries. Be careful ofthe direction of the batteries.A theremin consumes batteries as long as the switch is on even if itdoesnt make sound. Turn off the switch when not in use and removebatteries.

ACheck the wires of the speakerIf the wires come off of the speaker, solder these up.

QI can t tune it well.ATuning needs fine adjustment.

Turn the tuning stick more slightly. See Hint on turning the tuning stickat the lower left of the p.4 and tune patiently.

QThe zero point doesn t become stable aftertuning.ACheck if there is something moving around the

theremin.If something that conducts electricity is moving around the theremin, thesound changes. Keep these things at a distance while tuning.

AA theremin is easily influenced by temperature andhumidity.

Leave the theremin a few minuets after switching on until it becomesstable, and then start tuning one more time.

Q A

Theremin miniCircuit

Diagram

by Edward B. Marks Music Company

a-3 a-4

vol17 theremin m

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