[sdiy] Pulser & Ring Mod PCBs from by Music Easel adaptations available; New Year's Eve Special

[Dave Leith]

OK, got it - thanks to Luther's and Aaron's help, The waveform now is
much closer (not exactly yet) to Luther's photos. I had a wiring error
in the reset comparator circuit.

On Sun, Jan 16, 2011 at 1:16 PM, luther rochester
<luther.rochester at gmail.com> wrote:
> On 1/16/11 11:53 AM, Dave Leith wrote:
>>
>> Has anyone build these circuits?
>>
>>
>> I have a question about the pulser board. Does the cv output
>> (downwards ramp) maintain a sawtooth ramp (1) shape at the faster
>> speeds or does the top flatten out (2).
>>
>> 1, Normal cv (subaudio rate)
>> .           .            .            .
>>    .        .   .        .    .       .   .
>>       .     .      .     .       .    .      .
>>          .  .         .  .          . .         .
>>             .            .            .            .
>>
>>
>> 2. does one get higher speeds like this?
>> ....        ....         ....         ....
>>    .        .   .        .    .       .   .
>>       .     .      .     .       .    .      .
>>          .  .         .  .          . .         .
>>             .            .            .            .
>>
>> thanks dave
>
>
>
> I'm not sure about Aaron's adaptation board, but here are a couple shots
> from my Easel...
>
> At a slow pulse (probably 10hz):
> http://analogknobs.com/images/easel/IMG_5455.JPG
>
> At high frequency (not sure how high, but well into the audible range):
> http://analogknobs.com/images/easel/IMG_5453.JPG
>
> It flattens out at the bottom a bit but not at the top. Also there's a bit
> slower attack slope.
>
> Hope that's helpful.
> --
> ./luther
>