I don't know the details of BC3 but only BC2. The BC2 already outputs a
control voltage that can be used in the A-100. Maybe some amplification and
offset correction is necessary to obtain the full range of some modules as
it outputs only about 3V difference (~ +1...4 V as far as I remember). E.g.
a slightly modified A-138 could do this job (increased amplification by
changing one resistor of the module).

Best wishes
Dieter Doepfer
Doepfer Musikelektronik GmbH
Email address: hardware@...
Web Site: www.doepfer.com

> -----Ursprüngliche Nachricht-----
> Von: Doepfer_a100@yahoogroups.com
> [mailto: Doepfer_a100@yahoogroups.com ]Im Auftrag von jalmari3
> Gesendet: Dienstag, 31. Oktober 2006 11:43
> An: Doepfer_a100@yahoogroups.com
> Betreff: 1 Breath controller
>
>
> I would like to connect a breath controller to my soon arriving
> system. Currently I have Yamaha BC3, which is a passive capacitor
> based device. I already have a MIDI solution (Yamaha SY99 + A-190).
> However, in my experience, MIDI isn't fast or accurate enough
> with breath controllers. How could I a make direct analog connection
>
> Some technical info about breath controllers is found here:
> http://windsynth.org/iwsa_labs/hardware_information/silicon_pressure_t
> ransducers.pdf
> No specs though.
>
> Best regards
> Jari Jokinen
>
>
>
>
>
> Yahoo! Groups Links
>
>
>
>