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Circuitbenders Forum => Circuitbending discussion => Toys => Topic started by: epicentre on November 23, 2009, 06:02:09 PM

Title: Gakken Mini Theremin
Post by: epicentre on November 23, 2009, 06:02:09 PM
Looks fun and is very cheap, I wonder if it can be moded or/and put through some effects to sound "cleaner"... I would love to have something capable of making those creepy old sci-fi movie sound, but I'm unwilling to spend a lot of money for a real theremin just for adding occasional flavour to my songs.

Anyone had any experience with it?
Title: Re: Gakken Mini Theremin
Post by: Circuitbenders on November 23, 2009, 06:27:50 PM
link?
Title: Re: Gakken Mini Theremin
Post by: epicentre on November 24, 2009, 02:42:46 AM
http://cgi.ebay.co.uk/Mini-Theremin-Kit-Digital-Instrument-with-Eng-manual_W0QQitemZ290369346421QQcmdZViewItemQQptZUK_Musical_Instruments_Pro_Audio_Synthesisers_CV?hash=item439b5c9b75 (http://cgi.ebay.co.uk/Mini-Theremin-Kit-Digital-Instrument-with-Eng-manual_W0QQitemZ290369346421QQcmdZViewItemQQptZUK_Musical_Instruments_Pro_Audio_Synthesisers_CV?hash=item439b5c9b75)

Mini digital instrument Otona no Kagaku VOL17 Mini Theremin Gakken Sell With English Manual Gadgets (http://www.youtube.com/watch?v=lZG2V21J6D0#normal)

Gakken Theremin Mini Review (http://www.youtube.com/watch?v=ZwBpOL2o90Q#normal)

Title: Re: Gakken Mini Theremin
Post by: Circuitbenders on November 24, 2009, 03:09:42 AM
Looks pretty good for the price. Its certainly got a whole lot more range to it than i would have expected.

I'd imagine that a direct recording would sound a lot better than those videos which both appear to be just recorded from the internal speaker.

To get a really good 50's sci-fi tone you're going to have to spend a whole lot more than £15!

Title: Re: Gakken Mini Theremin
Post by: Gordonjcp on November 24, 2009, 08:39:46 AM
To get a really good 50's sci-fi tone you're going to have to spend a whole lot more than £15!

Or you can stuff a sinewave oscillator through an echo pedal ;-)
Title: Re: Gakken Mini Theremin
Post by: Matt the Modulator on November 24, 2009, 10:21:20 AM
The theremin can be used to controll the pitch of the gakken sx150 mini synth which has pitch modulation vibrato type ting and a filter and you can ciruit bent the hell out of the sx150 as well :)
http://www.flickr.com/photos/matt_the_modulator/3375768994/# (http://www.flickr.com/photos/matt_the_modulator/3375768994/#)
http://www.flickr.com/photos/matt_the_modulator/3369079034/# (http://www.flickr.com/photos/matt_the_modulator/3369079034/#)

The theremin does have a good pitch range its hard to beat for the price
most sellers on ebay sell both kits and will make a reduction for buying both together.
Title: Re: Gakken Mini Theremin
Post by: Circuitbenders on November 24, 2009, 01:36:33 PM
Or you can stuff a sinewave oscillator through an echo pedal ;-)

never sounds quite right though does it? I'm thinking that with a theremin the method of playing the thing is at least as important as the sound it produces.
Title: Re: Gakken Mini Theremin
Post by: epicentre on November 24, 2009, 04:05:36 PM
Quote
To get a really good 50's sci-fi tone you're going to have to spend a whole lot more than £15!

Sure, but I can't really afford to buy pro equipment just for fun, so I'd be more than happy if I can get a sound that's just similar :)

I just found this mod:

Gakken theremin mods (http://www.youtube.com/watch?v=eh0vdiUAGJ8#normal)

http://njb.virtualave.net/web/rl2007/theremin/theremin.htm (http://njb.virtualave.net/web/rl2007/theremin/theremin.htm)

Still sounds dirty, but much better :)

Title: Re: Gakken Mini Theremin
Post by: epicentre on November 27, 2009, 02:53:34 PM
Ok, I've ordered one so I'll just have to see for myself. Worst case scenario I'll have an amusing toy ;)
Title: Re: Gakken Mini Theremin
Post by: jamiewoody on December 03, 2009, 12:41:17 AM
though i would not expect it to sound like the model jimmy page used on whole lotta love...

i wonder if one were to bypass the tiny speaker that comes with it and preamp out, (using 1/4" phone/guitar jack) into a nice tube guitar amp, what the sound would be like?
Title: Re: Gakken Mini Theremin
Post by: jamiewoody on December 03, 2009, 12:42:54 AM
are there any united states or canadian distributors selling these things? i notice the price (around $20 usd), is not bad, but the shipping is a killer, coming from japan!
Title: Re: Gakken Mini Theremin
Post by: Matt the Modulator on December 03, 2009, 01:35:21 AM
yeh maker's shed but there not as cheap
http://www.makershed.com/ProductDetails.asp?ProductCode=MKGK8 (http://www.makershed.com/ProductDetails.asp?ProductCode=MKGK8)
Title: Re: Gakken Mini Theremin
Post by: jamiewoody on December 03, 2009, 05:54:56 AM
i suppose they have to pay shipping from japan like everyone else.
Title: Re: Gakken Mini Theremin
Post by: phantompowers on December 03, 2009, 11:03:13 AM
http://www.youtube.com/watch?v=somh4wKqcs0

I made this a few weeks ago to play on stage with my band.
I know it doesn't sound as good as a proper theramin but it was dead easy to make and all the parts were recycled. Although if you bought the parts new, it would only cost a couple of quid!

555 timer chip
LDR
jack socket
capacitor
optional LED's
9v battery

I will print out a schematic for you if you like but if you google '555 tone generator', there are 100's of schematics out there.
Title: Re: Gakken Mini Theremin
Post by: tinsolder on December 04, 2009, 11:57:13 PM
the tinfoil-trick is very cool and improves the gakken pitchrange.but if you're a bit into d.i.y and like the sine-wave then
you have to build one of his : http://home.att.net/~theremin1/ (http://home.att.net/~theremin1/) . the "minimum-theremin" is so easy to build an all the part cost about 15 euros.
cheers to all
Title: Re: Gakken Mini Theremin
Post by: jamiewoody on December 06, 2009, 12:43:23 AM
the raygun thing is pretty cool!
Title: Re: Gakken Mini Theremin
Post by: phantompowers on December 09, 2009, 02:57:40 AM
Cheers Jamie!