Jaycar Theremin

Posted: 7/8/2009 3:01:38 PM

Joined: 7/1/2009

Thanks Gordon, a very interesting, and useful bit of knowledge (Kit?). Joe, I have an effects box with gobs of stuff to do, but I didn't want to incurr any death threats for using it, so I wasn't going to tell anyone. :-) Howard.
Posted: 2/1/2012 7:25:06 PM

From: Florianópolis, Brazil

Joined: 2/1/2012

Hi, everybody! I'm from Brazil and this is my first post on this forum... I already own a Moog Etherwave clone, the RDS (www.theremin.com.br), and I'm intending to buy a Jaycar kit, to build it as a hobby... 

Reading on the internet, I've realized that there are two models of Jaycar's, but I've found another schematics (this one has more control knobs, including simetry, waveform, ...): http://us1.webpublications.com.au/static/downloads/articles/107224_ThereminMk2_PCBoverlay.gif


Where do I buy this kit? 

Is it a mod of the mk1/mk2?

Ps. Sorry about any bad english... I'm doing my best...


Posted: 2/2/2012 5:33:23 AM

From: Eastleigh, Hampshire, U.K. ................................... Fred Mundell. ................................... Electronics Engineer. (Primarily Analogue) .. CV Synths 1974-1980 .. Theremin developer 2007 to present .. soon to be Developing / Trading as WaveCrafter.com . ...................................

Joined: 12/7/2007

Hi folks,

There are schematics etc for many Jaycar theremin variants, and the Enkelaar, at




Posted: 6/5/2015 3:04:15 AM

From: Viradouro, São Paulo

Joined: 6/5/2015

 Ola!!! ggj1977

 Ola!!! Membros do Forum

Eu gostaria de saber se você ou alguém possui a listagem de componentes para esse projeto do qual você postou "Theremin MK2" sou um curioso em eletrônica e gostaria de executar esse projeto.

Ficaria muito grato caso alguém puder me auxiliar desde já muito obrigado!

Desculpem meu péssimo Inglês


Hello !!! Forum members

I wonder if you or anyone has the components listing for this project you posted "Theremin MK2"'m a curious electronics and would like to run this project.

I would be grateful if anyone can help me right now thanks!

Sorry for my bad english!

Posted: 6/5/2015 9:15:13 AM

From: züriCH

Joined: 3/15/2014


this link: http://www.elektroda.pl/rtvforum/download.php?id=349972  should give you the whole article as a .pdf file !

is it the one you've been looking for?

Edit: just to make it a bit more complete: check-out also here: http://thereminworld.com/Forums/T/28471/another-jaycar-mod and here: http://thereminworld.com/Forums/T/26521/diagnosing-jaycarepesilicon-chipkees-enkelaar-theremins.

...and welcome to thereminworld.

Posted: 6/6/2015 4:12:26 AM

From: Viradouro, São Paulo

Joined: 6/5/2015

Yes brother

Our thanks as soon hopefully soon post the process and progress of this project.

God bless and thank you for welcome ThereminWorld

Posted: 6/29/2015 7:37:09 PM

From: Viradouro, São Paulo

Joined: 6/5/2015

Good Afternoon!
I am very eager to build my first Theremin, but I'm having a lot of trouble finding some components in Brazil, since efetuei a great search in the search but have not achieved success.

I wonder if some forum member could or know someone who has provided or would provide Components abroad. I found on Ebay, but found very high values and rates making it a very expensive and in some ways preferable to project the acquisition of Theremin ready

I need the following components:

01 - Optocoupler NSL 32sr3

03 - low-cost 455KHz 2nd IF transformers
(slug white) (T1 to T3)
01- low-cost 455kHz 3rd IF transformer
(black slug) (T4)

(White and Black)

By a prior estimate can make the payment by paypal
I will be very grateful if they can help.

Sorry for my bad english

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