Specifications

The SX-150 contains analog components as described in the following picture.

The Controller		- A touch pen generates CV and Gate. - Also has a tiny extenal input that does F/V conversion. (but also responds to amplitude :-).
VCO		Sawtooth output
VCF		Sullen-Key type 12dB/Oct filter. Very much like Korg MS-20 filter.
Envelope Generator		AD type.
LFO		Two waveforms: triangular and rectangular.
Output		Built-in amplifier and speaker in it. Line output provided as well.

How to Purchase from outside Japan

One reliable way is to purchase from Amazon.co.jp. They ship their goods worldwide. Click the picture of the magazine in the right sidebar that brings you to the page. Or go to amazon.co.jp and search the one using keywords "gakken mook". You can switch Amazon.co.jp pages to English, so language should be no problem for ones reading this page :-)

Resources

-> Gakken SX-150 Page (in Japanese)
-> Schematics