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Dean Stiglitz (09:44 AM 12.14.2001) wrote: >another, often overlooked source of cv is a headphone out (reciever, >mixing >board, microcassette, etc)...line level is generally too low to run a cv, >but the headphone amp can almost always do the job (i like the headphone >out >of the tv myself, as you can see/hear the relationship between the lips >moving and the mod. Be careful about overloading the amp... Driving a DC circuit like that can put a decent load on the amp. In college (1979), we used to run an oscillator from a modular synth, run it straight into a large power amp, then run the speaker outputs straight into the (110v) AC motor that was driving the capstan on a tape deck. Playing a note on the modular's keyboard changed the frequency of the oscillator, which changed the speed of the capstan motor, which changed the pitch of what was recorded on the tape running through it. It worked, but that amp really didn't care much for it. :) Mark