[sdiy] Doepfer's new vactrols?

[Vladimir Pantelic]

this MW thread mentions one:

https://www.modwiggler.com/forum/viewtopic.php?t=296883

On Sun, Apr 12, 2026, 21:56 Martin Klang via Synth-diy <
synth-diy at synth-diy.org> wrote:

> Are there real RoHS-compliant photo resistors, or do they have some kind
> of exception?
>
> Martin
>
>
>
> Enviado de Samsung Mobile
>
>
> -------- Mensaje original --------
> De: Mike Bryant <mbryant at futurehorizons.com>
> Fecha: 12/4/26 17:21 (GMT+01:00)
> Para: synth-diy at synth-diy.org, Sean Ellis <tensiontype at hotmail.com>
> Asunto: Re: [sdiy] Doepfer's new vactrols?
>
> In the technical notes on another site
>
> "The 4 photo resistors and LEDs are assembled within an small lightproof
> box"
> ------------------------------
> *From:* Synth-diy <synth-diy-bounces at synth-diy.org> on behalf of Sean
> Ellis via Synth-diy <synth-diy at synth-diy.org>
> *Sent:* 12 April 2026 15:51
> *To:* synth-diy at synth-diy.org <synth-diy at synth-diy.org>
> *Subject:* [sdiy] Doepfer's new vactrols?
>
> 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?
> High res pictures here:
> https://www.thomann.se/intl/doepfer_a_171_4.htm
> https://www.thomann.se/intl/doepfer_a_149_3.htm
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