<div dir="auto"><div><div dir="auto">this MW thread mentions one:</div><div dir="auto"><br></div><a href="https://www.modwiggler.com/forum/viewtopic.php?t=296883">https://www.modwiggler.com/forum/viewtopic.php?t=296883</a><br><br><div class="gmail_quote gmail_quote_container"><div dir="ltr" class="gmail_attr">On Sun, Apr 12, 2026, 21:56 Martin Klang via Synth-diy <<a href="mailto:synth-diy@synth-diy.org">synth-diy@synth-diy.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="auto"><div dir="auto">Are there real RoHS-compliant photo resistors, or do they have some kind of exception?</div><div dir="auto"><br></div><div dir="auto">Martin</div><div dir="auto"><br></div><div dir="auto"><br></div><div dir="auto"><br></div><div id="m_-8898803048680564700composer_signature" dir="auto"><div style="font-size:14px;color:#909090" dir="auto">Enviado de Samsung Mobile</div></div><div dir="auto"><br></div><div><br></div><div align="left" dir="auto" style="font-size:100%;color:#000000"><div>-------- Mensaje original --------</div><div>De: Mike Bryant <<a href="mailto:mbryant@futurehorizons.com" target="_blank" rel="noreferrer">mbryant@futurehorizons.com</a>> </div><div>Fecha: 12/4/26  17:21  (GMT+01:00) </div><div>Para: <a href="mailto:synth-diy@synth-diy.org" target="_blank" rel="noreferrer">synth-diy@synth-diy.org</a>, Sean Ellis <<a href="mailto:tensiontype@hotmail.com" target="_blank" rel="noreferrer">tensiontype@hotmail.com</a>> </div><div>Asunto: Re: [sdiy] Doepfer's new vactrols? </div><div><br></div></div>
<div style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
In the technical notes on another site</div>
<div style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
<br>
</div>
<div style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
"The 4 photo resistors and LEDs are assembled within an small lightproof box"</div>
<div id="m_-8898803048680564700appendonsend"></div>
<hr style="display:inline-block;width:98%">
<div dir="ltr" id="m_-8898803048680564700divRplyFwdMsg"><font color="#000000" style="font-size:11pt" face="Calibri, sans-serif"><b>From:</b> Synth-diy <<a href="mailto:synth-diy-bounces@synth-diy.org" target="_blank" rel="noreferrer">synth-diy-bounces@synth-diy.org</a>> on behalf of Sean Ellis via Synth-diy <<a href="mailto:synth-diy@synth-diy.org" target="_blank" rel="noreferrer">synth-diy@synth-diy.org</a>><br>
<b>Sent:</b> 12 April 2026 15:51<br>
<b>To:</b> <a href="mailto:synth-diy@synth-diy.org" target="_blank" rel="noreferrer">synth-diy@synth-diy.org</a> <<a href="mailto:synth-diy@synth-diy.org" target="_blank" rel="noreferrer">synth-diy@synth-diy.org</a>><br>
<b>Subject:</b> [sdiy] Doepfer's new vactrols?</font>
<div> </div>
</div>

<div dir="ltr">
<div style="font-family:"Calibri","Helvetica",sans-serif;font-size:12pt;color:rgb(0,0,0)">
I was looking at the Doepfer quad slew module and noticed something odd, it doesn't have any VCAs and very few parts. It does have a giant black box that looks a lot like a regulator but it isn't, could it be a quad vactrol? I don't see any markings and the
 same unit appears on the Source of Uncertainty module in place of it's vactrol. Has anyone seen these or could they be custom jobs?</div>
<div style="font-family:"Calibri","Helvetica",sans-serif;font-size:12pt;color:rgb(0,0,0)">
High res pictures here:</div>
<div style="font-family:"Calibri","Helvetica",sans-serif;font-size:12pt;color:rgb(0,0,0)">
<a href="https://www.thomann.se/intl/doepfer_a_171_4.htm" target="_blank" rel="noreferrer">https://www.thomann.se/intl/doepfer_a_171_4.htm</a></div>
<div style="font-family:"Calibri","Helvetica",sans-serif;font-size:12pt;color:rgb(0,0,0)">
<a href="https://www.thomann.se/intl/doepfer_a_149_3.htm" target="_blank" rel="noreferrer">https://www.thomann.se/intl/doepfer_a_149_3.htm</a></div>
</div>


</div>________________________________________________________<br>
This is the Synth-diy mailing list<br>
Submit email to: <a href="mailto:Synth-diy@synth-diy.org" target="_blank" rel="noreferrer">Synth-diy@synth-diy.org</a><br>
View archive at: <a href="https://synth-diy.org/pipermail/synth-diy/" rel="noreferrer noreferrer" target="_blank">https://synth-diy.org/pipermail/synth-diy/</a><br>
Check your settings at: <a href="https://synth-diy.org/mailman/listinfo/synth-diy" rel="noreferrer noreferrer" target="_blank">https://synth-diy.org/mailman/listinfo/synth-diy</a><br>
Selling or trading? Use <a href="mailto:marketplace@synth-diy.org" target="_blank" rel="noreferrer">marketplace@synth-diy.org</a><br>
</blockquote></div></div></div>