Cgs synth

Odd. Exceeding something somewhere? Try adding a resistor in series with the
top end of a pot and seeing if that eliminates it.

Ken

>One more question (after a long session last night)
>
>I have the eight pots set up with +15v coming in, then out to a 200K
>resistor and then on to the I1, I2, I3, etc
>
>Things work properly, *but* there is a voltage "bump" at the upper
>end of each pot's range and it seems to leak into the Output. For
>example, step #2 is active, the pot set about 50%, +3v coming from
>the Output. If I turn step #6 (or #5 or #1) pot clockwise, at the
>very end of the range the Output will jump up to ~+3.1v.
>
>Everything is fine if I keep the pots from going to the last 5% of
>their clockwise sweep. ????
>
>Drew
>
>--- In cgs_synth@yahoogroups.com, sasami@... wrote:
>>
>> >Well I know why my first Sequential Switch did the pop 'n smoke
>> >thing... wrong chips! 4051 isn't 4015 :)
>>
>> That would make a minor difference :)
>>
>> >On my "fixed" version, the current step LED takes about 3 seconds
>to
>> >totally go dark when I remove power. Is that an indicator of
>something
>> >wrong or is that OK ?
>>
>> That is caused by the power supply capacitors and decoupling
>capacitors
>> discharging. Quite normal.
>>
>> Ken
>>
>>
>>
>______________________________________________________________________
>_
>> 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/>