Can anyone tell me about my new toy?

Cereb Daithi · Post by **Cereb Daithi** » Wed Nov 15, 2006 6:23 am

I know nothing about electronics.

However one of my buddies from california just shipped me a sort of early christmas gift...

SM20256 VCO IC

wants to get me on my way to building my first monosynth. what i wana know is do any of you guys have any experience in this field?

sirwilliam · Post by **sirwilliam** » Wed Nov 15, 2006 6:25 am

Sorry, I try not to come in contact w/ mono.

Mr Kleen · Post by **Mr Kleen** » Wed Nov 15, 2006 9:26 am

my dad is an electronics whiz. unfortunately I didn't pick up much of that knowledge.

chicken n waffles · Post by **chicken n waffles** » Wed Nov 15, 2006 9:27 am

nope. i sure can't. not at all. nuh-uh.

Post by **complacent** » Wed Nov 15, 2006 9:40 am

Looks like it's meant to be used to generate both positive and negative frequencies (either fixed-beat-frequency (20kHz) or variable sine) with the output piped into a mixer. The VCO's are typically used to generate analog music effects.... Or so I heard.

Quality of the signal is mostly dependent upon the number of outputs and oscillators. Although I couldn't find anything specific on that exact model, is it by chance a quadruple output IC? How many oscillators are on the chip? The fewer the better!

Post by **Sabre** » Wed Nov 15, 2006 2:23 pm

Hmm, no schematics to go with it?

Cereb Daithi · Post by **Cereb Daithi** » Wed Nov 15, 2006 2:24 pm

just that in an envelope haha. i really have no idea what i'm doing