[sdiy] Tama TechStar TS306 mods

[gregory zifcak]

hey now that you mention the 707 and dr110, i think you are also on the 707 
yahoo group, right?

i don't know anything about FETs. i've destroyed a few random ICs 
accidentally; the circuits worked again once i replaced them with parts from 
spare tama boards. there was a guy named Daryl on this list and AH who said 
he had been able to trigger the memory settings. he was planning to use it 
for open/closed hi hats and things like that. you might find some of his 
posts in the AH and SDIY archives. he also made a tri-sine waveshaper out of 
the emphasis circuit.

noise modulation sounds like a great idea, i wonder why it didn't work?

one thing i'd like to figure out is how to make the clap's tune range wider.


>
>--- gregory zifcak <zifcak at hotmail.com> wrote:
> > yeah, these are great! do you know which opamp would be a good
> > replacement
> > for the 4558?
>
>I tried 5332s with decent sound
>
> > unless something is broken, you should get a downward bend by turning
> > the
> > bend knob clockwise. there is a center detent for no bend, and
> > counter-clockwise is bend up.
>
>Might be broken, I tried the wonky tom module first
>
>Those mods you listed sound like fun! The "emphasis" amp is just
>begging to be played with.
>
>About the FETs, had you noticed those to be volatile when you were
>trying those mods? Perhaps you are just more knowledgeable than I about
>what to or not connect. Analog circuits I've played with like this have
>typically not been so sensitive.
>
>Have you succeeded in making the "memory" switch triggerable? I have
>been looking for links on switching with FETs, but have not found this
>sort of application mentioned.
>
>Thanks for relating those mods!
>CJ

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