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<p>Yes I did look at the flat keys piece recently as well as the dsp
synth psuedo-tog which is $25.</p>
<p><a class="moz-txt-link-freetext" href="http://www.dspsynth.eu/">http://www.dspsynth.eu/</a></p>
<p>This really interesting page</p>
<p><a class="moz-txt-link-freetext" href="http://www.armory.com/~rstevew/Public/SoundSynth/TopOctave/topdividers.html">http://www.armory.com/~rstevew/Public/SoundSynth/TopOctave/topdividers.html</a></p>
<p>This article</p>
<p><a class="moz-txt-link-freetext" href="http://www.logosfoundation.org/kursus/2073.html">http://www.logosfoundation.org/kursus/2073.html</a></p>
<p>and this</p>
<p><a class="moz-txt-link-freetext" href="http://www.narcisivalter.it/progetti/top-octave-synthesizer-5010.html">http://www.narcisivalter.it/progetti/top-octave-synthesizer-5010.html</a><br>
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<div class="moz-cite-prefix">On 9/19/2017 7:49 PM, Dave Garfield
wrote:<br>
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<div id="yui_3_16_0_ym19_1_1505862289768_38119">Hi, all</div>
<div id="yui_3_16_0_ym19_1_1505862289768_38899" dir="ltr">While
it doesn't do PWM, an English company named FlatKeys produces
a Top Octave Generator replacement for the classic synths and
organs which use a 50240 TOG. This one isn't just a divider;
it generates 12 separate top octave waves which are in tune,
unlike the originals' approximations.<br>
It will also do vibrato, as it has a master clock. It can
switch octaves if desired, or transpose keys. <br>
The price is £52.80.<br>
I haven't tried one out, but have been meaning to for a long
time. If anyone else out there has, I'd love to hear about it
- warts and all. Maybe it will work for you, or someone else
out there.</div>
<div id="yui_3_16_0_ym19_1_1505862289768_38872" dir="ltr"><a
class="enhancr2_25de5670-1564-a9fb-8d18-3b2c135ea869
edited-link-editor"
id="yui_3_16_0_ym19_1_1505862289768_38871"
href="http://www.flatkeys.co.uk/MK50240.html"
moz-do-not-send="true">FK50240 MK50240</a> </div>
<div id="yui_3_16_0_ym19_1_1505862289768_39147" dir="ltr">I am
NOT affiliated with FlatKeys in any way, shape, form or
manner. Just thought that this might be a good solution for
replacing scarce top octave divider chips.</div>
<div id="yui_3_16_0_ym19_1_1505862289768_38898"><br>
</div>
<div class="yahoo-link-enhancr-card
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style="max-width:400px;font-family:'Helvetica Neue',
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data-url="http://www.flatkeys.co.uk/MK50240.html"
data-size="medium" data-category="article" data-embed-url=""
contenteditable="false"> <a class="yahoo-enhancr-cardlink"
id="yui_3_16_0_ym19_1_1505862289768_38888"
style="text-decoration:none !important; color: #000
!important" href="http://www.flatkeys.co.uk/MK50240.html"
target="_blank" rel="noreferrer" moz-do-not-send="true">
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<h2 class="card-title" style="margin:0 0 4px
0;font-size:16px;font-family:'Helvetica
Neue', Helvetica, Arial,
sans-serif;word-break:break-word;">FK50240
MK50240</h2>
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<div class="yahoo_quoted" style="display: block;">
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<div dir="ltr"><font size="2" face="Arial"> On Tuesday,
September 19, 2017 5:32 PM, Tom Wiltshire
<a class="moz-txt-link-rfc2396E" href="mailto:tom@electricdruid.net"><tom@electricdruid.net></a> wrote:<br>
</font></div>
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<br>
<div class="y_msg_container">
<div dir="ltr">Because the standard TOG is based on
dividers, you can’t add PWM. Run any width pulse wave
through a flip-flop and the output's a square, after
all.<br clear="none">
<br clear="none">
That said, there were some TOGs the produced 33% pulse
waves rather than squares (not sure exactly what the
internals were to do that) but there were none that
offered PWM.<br clear="none">
<br clear="none">
If you had twelve ramp oscillators for the top-octave,
you could arrange ramp+squares to give you ramps at
various divided octaves, and then use those ramps to
produce PWM, but it’d be a lot of circuitry, and it’d
probably get a bit sensitive. Have a search for
“sub-octave ramp wave” to get the basic idea.<br
clear="none">
<br clear="none">
HTH,<br clear="none">
Tom<br clear="none">
<br clear="none">
==================<br clear="none">
Electric Druid<br clear="none">
Synth & Stompbox DIY<br clear="none">
==================<br clear="none">
<br clear="none">
> On 20 Sep 2017, at 00:06, Mike HEQX <<a
href="mailto:mike@heqx.com" shape="rect"
ymailto="mailto:mike@heqx.com"
moz-do-not-send="true">mike@heqx.com</a>> wrote:<br
clear="none">
> <br clear="none">
> I wanted to do something with a TOG and I was
hoping I could add PWM to it. Not sure if you can PWM
the master clock though, but that's what I want to
try. After all you pitch bend it that way.<br
clear="none">
> <br clear="none">
> I not does that mean 12 pwm on the output of the
tog?<br clear="none">
> <br clear="none">
> <br clear="none">
> thoughts?<br clear="none">
> <br clear="none">
> <br clear="none">
> Mike<br clear="none">
> <br clear="none">
> _______________________________________________<br
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