I think Decay and Damper are backwards on the CGS diagram.
It just occured to me that my panel's envelope pot is labeled wrong!
Instead of 0 to 10, it should read -5 to +5. It should be at 0 in the
middle, negative envelope to left, positive to right. Ugh!
: (
It sounds like you have the switches wired up correctly. Try testing it
with just lowpass on at first, and checking the resonance again.
Cheers,
Scott Deyo
The Bridechamber
contact@...
http://www.bridechamber.com
Jealous Edison Record Kompany
http://www.jealousedison.com
It just occured to me that my panel's envelope pot is labeled wrong!
Instead of 0 to 10, it should read -5 to +5. It should be at 0 in the
middle, negative envelope to left, positive to right. Ugh!
: (
It sounds like you have the switches wired up correctly. Try testing it
with just lowpass on at first, and checking the resonance again.
Cheers,
Scott Deyo
The Bridechamber
contact@...
http://www.bridechamber.com
Jealous Edison Record Kompany
http://www.jealousedison.com
On Sep 14, 2008, at 11:11 PM, Dave wrote:
> Hi all,
>
> I just finished building a cynare :) But am having problems with
> the filter section. I am building a kit supplied by bridechamber
> which has three separate SPDT switches for the filter types. I have
> added the 6 pots for the osc and also added the impact gen mod to it
> too (I subbed in a 100k pot for the 25k for now until I can get the
> 25k pot). These mods seem to work correctly. I also changed the R
> gain resistor to 1.5k instead of the 10k.
>
> I followed the CGS wiring diagram exactly assuming that the pot
> shafts are facing away from me and CW is 3 (I am not sure about this).
> One strange thing I noticed with this is that the Decay and Damper
> pots seem wired backwards so that as I turn it from 0 to 10 the decay
> shortens for both, I would think it should lengthen the decay as you
> turn the pot towards 10. The tone or balance between noise and
> shimmer operates correctly.
>
> The problem with the filter is that the filter sweep is minimal
> in effect, the envelope affects the impact sound strangely, when in
> the middle (5) there is little to no impact sound and when at either 0
> or 10 the impact is back (sweeping the impact pot mod changes the
> character of the impact sound). The resonance pot is also acting very
> strange. I have wired the three switches as best I
> knew how which is took the LP, BP, and HP and wired them to the bottom
> lugs of three switches then I wired some bus wire across the three
> middle lugs of the switches and attached the common wire to that. I
> don't know if that is correct but it makes sense to me. When I switch
> between the filter types I can hear changes in tone that corresponds
> to the filter type.
>
> Did I wire the three switches correctly, if not how should I do this?
>
> The main malfunction seems to come from the resonance pot. It does
> not increase the resonance and when I turn it all sound going through
> the filter is silenced for about 1-2 seconds and then comes back again
> with no change regardless of whether it is at 0 or 10.
>
> I'm new to the DIY so I don't want to mess with things too much
> while trouble shooting, so I've gone over the board looking for shorts
> and poor connections but have not found anything yet, should I try
> changing some of the wires around on the res pot or maybe the freq
> pot? I'm confused as to why the decay and damper seem to operate
> backwards from convention and am wondering if I got these wired
> backwards maybe I wired the res or freq pots backwards but I've
> checked over and over again and they match up to kens diagram...
>
> Sorry for the long post :) Any help would be greatly appreciated,
>
> Thanks,
> Dave
>
>
>
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