[sdiy] Sound Lab Mini Questions

[Rude 66]

success here as well!

 last night nothing at all worked, but it turned out to be a faulty output
jack for the audio out..

vco 1 is there, filter works (nice sound! it can 'blubber' like a sh101!)
lfo works, thoughi'm not quite shure what does what switch-wise. eg works,
vca works.
i only can't get oscillator 2 to do anything soundwise, though it seems to
be there because when i connect its out to vco 1's in, i can tune it with
vco 2's knob.

it sounds surprisingly 'roland'..;-)

more later!

r./






----- Original Message -----
From: "john mahoney" <jmahoney at gate.net>
To: "Synth-Diy" <synth-diy at dropmix.xs4all.nl>
Sent: Friday, June 18, 2004 4:22 PM
Subject: Re: [sdiy] Sound Lab Mini Questions


> Update: I couldn't go to bed without a quick repair and a little more
> testing. (I know that you can all relate to that. "I'll be just a few more
> minutes, honey!" ;-)
>
> As expected, replacing the broken switch made VCO2 work. Yippee! Osc 2 is
> switchable between ramp and pulse, and that was the frozen switch.
> Fortunately, no components lost any of their precious smoke.
>
> I think that the LFO was working from the get-go. I'm glad that Ray
included
> Harry Bissell's Ramp/Tri/Saw selector switch. That's a *great* feature.
LFO
> builders take note!
>
> The VCF is okay, except that I can't bring the cut-off frequency low
enough.
> Also, the bandwidth in BP mode sounds narrower than I expected. But hey,
it
> was after midnight, and my testing was limited, so I have not reached any
> conclusions.
>
> I love the repeat (loop) feature on the envelope generator. All EGs should
> have it.
>
> My only real complaint is that, as Rude66 once said, the front panel
wiring
> is a bit of a rat's nest. I can't really see how to avoid that, though.
That
> reminds me, I've got to take some photos of this little monster, as it
> currently looks like a real piece of... um... work!
> --
> john
>