[sdiy] intro to SDIY playshop: suggestions?

[harrybissell at wowway.com]

I'd suggest the PAiA 2720 series bandpass VCF

Its a simple design (two transistor Twin-tee) and it
works OK for as simple as it is...

H^) harry


n Mon, 21 Jul 2008 10:49:35 -0400, rdrake wrote
> i've been facilitating (i hesitate to say "teaching") a workshop in 
> musical/noize electronics, based primarily on Nic Collins' fantastic 
> "Handmade Electronic Music" book.  most of the participants started 
> with zero technical knowledge.  so far they've learned some 
> soldering, basic components & schematics, circuit bending, 
> solderless breadboards, and built a contact mic, LM386 amp, and a 
> variety of CMOS oscillators (40106, 4093).  really has been a ton of 
> fun, and very gratifying to see folks pick up on stuff.
> 
> now that we have some sound sources, i'd like to introduce some 
> kinds of sound modifying circuits... in part to quiet that infernal 
> beeping din.  homemade 'vactrol' kinds of things being the obvious 
> choice.  thought i'd ask for suggestions, for VCA, VCF, or other 
> such?  requirements are to be dead simple, fault-tolerent, non-
> critical component values... and my preference would be to stick 
> with single-sided supply, everything so far has been 9v.
> 
> just for context: folks goals are to get a general pragmatic 
> orientation to electronics (not intro EE, just enuf to make stuff 
> work), and to make noize (not necessarily "music"--beeping is fine,
>  tuning is optional).  i showed a reverb made out of a slinky glued 
> to a speaker on one end and a piezo on the other, met with 
> widespread approval)...
> 
> anyway, would welcome suggestions.
> 
> bbob
> www.fluxmonkey.com
> _______________________________________________
> Synth-diy mailing list
> Synth-diy at dropmix.xs4all.nl
> http://dropmix.xs4all.nl/mailman/listinfo/synth-diy


Harry Bissell & Nora Abdullah 4eva