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Sequential Switch 'length' rotary

Sequential Switch 'length' rotary

2008-03-17 by kopernig

Anyone put a length rotary switch on a Sequential Switch? I've wired
one in after Ken's description (I think) and it's acting all
bewitched... skipping over positions, same length of positions no
matter how the switch is wired, things like that. Anyone any hints?
Thanks,
Andrew.

Re: Sequential Switch 'length' rotary

2008-03-17 by sasami@hotkey.net.au

first question - did it work right before you added the switch?

ken
Show quoted textHide quoted text
>Anyone put a length rotary switch on a Sequential Switch? I've wired
>one in after Ken's description (I think) and it's acting all
>bewitched... skipping over positions, same length of positions no
>matter how the switch is wired, things like that. Anyone any hints?
>Thanks,
>Andrew.
>
>
>------------------------------------
>
>The CGS Modular Synth home page: http://www.cgs.synth.net/
>Yahoo! Groups Links
>
>
>
>
_______________________________________________________________________
Ken Stone sasami@...
Modular Synth PCBs for sale <http://www.cgs.synth.net/>
Australian Miniature Horses & Ponies <http://www.blaze.net.au/~sasami/>

Re: Sequential Switch 'length' rotary

2008-03-18 by kopernig

Yes, it worked perfectly, plus I added eight pots normalized to the
inputs. Works perfectly as an eight-step sequencer too. I've wired the
10-step rotary:
1> NC
2-9> 1-8 gate outputs
10> NC
Common> RSS
That's how I understand it from the description... maybe I'm
misunderstanding somewhere.
Thanks,
Andrew
Show quoted textHide quoted text
--- In cgs_synth@yahoogroups.com, sasami@... wrote:
>
> first question - did it work right before you added the switch?
>
> ken
>
> >Anyone put a length rotary switch on a Sequential Switch? I've wired
> >one in after Ken's description (I think) and it's acting all
> >bewitched... skipping over positions, same length of positions no
> >matter how the switch is wired, things like that. Anyone any hints?
> >Thanks,
> >Andrew.
> >
> >
> >------------------------------------
> >
> >The CGS Modular Synth home page: http://www.cgs.synth.net/
> >Yahoo! Groups Links
> >
> >
> >
> >
> _______________________________________________________________________
> Ken Stone sasami@...
> Modular Synth PCBs for sale <http://www.cgs.synth.net/>
> Australian Miniature Horses & Ponies <http://www.blaze.net.au/~sasami/>
>

Re: Sequential Switch 'length' rotary

2008-03-18 by kopernig

Yes, it worked perfectly, plus I added eight pots normalized to the
inputs. Works perfectly as an eight-step sequencer too. I've wired the
10-step rotary:
1> NC
2-9> 1-8 gate outputs
10> NC
Common> RSS
That's how I understand it from the description... maybe I'm
misunderstanding somewhere.
Thanks,
Andrew
Show quoted textHide quoted text
--- In cgs_synth@yahoogroups.com, sasami@... wrote:
>
> first question - did it work right before you added the switch?
>
> ken
>
> >Anyone put a length rotary switch on a Sequential Switch? I've wired
> >one in after Ken's description (I think) and it's acting all
> >bewitched... skipping over positions, same length of positions no
> >matter how the switch is wired, things like that. Anyone any hints?
> >Thanks,
> >Andrew.
> >
> >
> >------------------------------------
> >
> >The CGS Modular Synth home page: http://www.cgs.synth.net/
> >Yahoo! Groups Links
> >
> >
> >
> >
> _______________________________________________________________________
> Ken Stone sasami@...
> Modular Synth PCBs for sale <http://www.cgs.synth.net/>
> Australian Miniature Horses & Ponies <http://www.blaze.net.au/~sasami/>
>

Re: Sequential Switch 'length' rotary

2008-03-18 by sasami@hotkey.net.au

What you have done sounds correct.
First discconnect the wire from RSS and see if you still have problems.
Yes - you've disturbed something else. perhaps investigate the input stage.
Did you swap the LM342 for a TL074?
No - you are picking up nise through your wires. Try adding a capcitor
between RSS and 0V. Start with 1n (1000pf). if that isn't good enough, try
10n (0.01uF),

Ken
Show quoted textHide quoted text
>Yes, it worked perfectly, plus I added eight pots normalized to the
>inputs. Works perfectly as an eight-step sequencer too. I've wired the
>10-step rotary:
>1> NC
>2-9> 1-8 gate outputs
>10> NC
>Common> RSS
>That's how I understand it from the description... maybe I'm
>misunderstanding somewhere.
>Thanks,
>Andrew
>
>--- In cgs_synth@yahoogroups.com, sasami@... wrote:
>>
>> first question - did it work right before you added the switch?
>>
>> ken
>>
>> >Anyone put a length rotary switch on a Sequential Switch? I've wired
>> >one in after Ken's description (I think) and it's acting all
>> >bewitched... skipping over positions, same length of positions no
>> >matter how the switch is wired, things like that. Anyone any hints?
>> >Thanks,
>> >Andrew.
>> >
>> >
>> >------------------------------------
>> >
>> >The CGS Modular Synth home page: http://www.cgs.synth.net/
>> >Yahoo! Groups Links
>> >
>> >
>> >
>> >
>> _______________________________________________________________________
>> Ken Stone sasami@...
>> Modular Synth PCBs for sale <http://www.cgs.synth.net/>
>> Australian Miniature Horses & Ponies <http://www.blaze.net.au/~sasami/>
>>
>
>
>
>------------------------------------
>
>The CGS Modular Synth home page: http://www.cgs.synth.net/
>Yahoo! Groups Links
>
>
>
>
_______________________________________________________________________
Ken Stone sasami@...
Modular Synth PCBs for sale <http://www.cgs.synth.net/>
Australian Miniature Horses & Ponies <http://www.blaze.net.au/~sasami/>

Re: Sequential Switch 'length' rotary

2008-03-21 by kopernig

The capacitor from RSS to ground seems to do the trick, going to
experiment a little more with it...
Thanks for the help,
Andrew
Show quoted textHide quoted text
--- In cgs_synth@yahoogroups.com, sasami@... wrote:
>
> What you have done sounds correct.
> First discconnect the wire from RSS and see if you still have problems.
> Yes - you've disturbed something else. perhaps investigate the input
stage.
> Did you swap the LM342 for a TL074?
> No - you are picking up nise through your wires. Try adding a capcitor
> between RSS and 0V. Start with 1n (1000pf). if that isn't good
enough, try
> 10n (0.01uF),
>
> Ken
>
> >Yes, it worked perfectly, plus I added eight pots normalized to the
> >inputs. Works perfectly as an eight-step sequencer too. I've wired the
> >10-step rotary:
> >1> NC
> >2-9> 1-8 gate outputs
> >10> NC
> >Common> RSS
> >That's how I understand it from the description... maybe I'm
> >misunderstanding somewhere.
> >Thanks,
> >Andrew
> >
> >--- In cgs_synth@yahoogroups.com, sasami@ wrote:
> >>
> >> first question - did it work right before you added the switch?
> >>
> >> ken
> >>
> >> >Anyone put a length rotary switch on a Sequential Switch? I've wired
> >> >one in after Ken's description (I think) and it's acting all
> >> >bewitched... skipping over positions, same length of positions no
> >> >matter how the switch is wired, things like that. Anyone any hints?
> >> >Thanks,
> >> >Andrew.
> >> >
> >> >
> >> >------------------------------------
> >> >
> >> >The CGS Modular Synth home page: http://www.cgs.synth.net/
> >> >Yahoo! Groups Links
> >> >
> >> >
> >> >
> >> >
> >>
_______________________________________________________________________
> >> Ken Stone sasami@
> >> Modular Synth PCBs for sale <http://www.cgs.synth.net/>
> >> Australian Miniature Horses & Ponies
<http://www.blaze.net.au/~sasami/>
> >>
> >
> >
> >
> >------------------------------------
> >
> >The CGS Modular Synth home page: http://www.cgs.synth.net/
> >Yahoo! Groups Links
> >
> >
> >
> >
> _______________________________________________________________________
> Ken Stone sasami@...
> Modular Synth PCBs for sale <http://www.cgs.synth.net/>
> Australian Miniature Horses & Ponies <http://www.blaze.net.au/~sasami/>
>

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