2 Dec
2005
2 Dec
'05
1:49 a.m.
Ethan Dicks wrote:
On 12/1/05, Gordon JC Pearce <gordonjcp at
gjcp.net> wrote:
:-) I'm sure googling for "covox speech thing" or something would have
turned up exactly what you were after but I had just been looking at
that very thing earlier in the day...
Gordon.
Ethan Dicks wrote:
I did eventually find that at
http://www.hylander.us/images/schematics/roland/tb303.gif
Thanks for the hint. ... where I thought things were, but I appear to
have lost an old file
that described how to make a simple D-A that one could hang off of an
8-bit I/O port to generate a voltage from approx 0 VDC to +5VDC. Does
Off the top of my head, look in the top left bit of a TB303 circuit
diagram where the 7-bit converter to generate the VCO control voltage
is. Googling for "tb303.gif" should bring it up. 