[sdiy] Interested in Tau Pipe Phaser / Flanger boards ?

[JH.]

Good point.
But keep in mind that I'm not going into the "kit business", so I don't have 
to find and offer a "complete package", a module that fits all demands. I 
just think it's much easier for others to build some of my projects when I 
provide a PCB, than to just build them from the schematics and go to 
veroboard, as I did all these years. It's perfectly ok to use that PCB for 
all the basic (and not so basic) functions it provides, and add a *tiny* 
verobaord circuit to customise the circuit for one's personal needs.

JH.

>You are now about to enter the twilight zone of interested
>peoples-requests-to-change-this-and-change-that-in-the-pcb!
>
>Reg
>KD


--- "JH." <jhaible at debitel.net> skrev:

> Hi,
>
> many of you may already know about this strange effect device,
> which sounds more like a flanger (some say, like a thru-zero flanger!),
> but actually is a phaser with 20 (twenty!) all pass filter stages.
>
> If you haven't heard it yet, go to
> http://www.keyboardmuseum.org/soundsheet/soundsheet.html ,
> scroll down to "The Pipe Phase Demo Record" and listen to the demo.
>
> The service manual is located here:
> http://www.musicsynthesizer.com/Diode%20Phaser/Diode%20Phaser.html
>
> I think it's quite impressive and extreme sounding, and it's closely
> related to the ARP Quadra Phaser which I've cloned some years ago:
> http://home.debitel.net/user/jhaible/additional_schemos.html
>
> And, looking for a project to further develop my pcb layout skills with
> RIMU before I start that big Vocoder, I thought the Tau Pipe would be
> a good choice.
>
> I've redesigned the original circuit, such that there are no more exotic
> components (no more obsolete dual FET), and all the circuitry that
> originally was potted in the infamous PD-10 modules, is part of the main
> circuit board in my version.
> I plan to make the layout such that you can
> *either*
> (1) use cheap CA3086 transistor arrays
> *or*
> (2) - for an ultra low noise version - SSM2210, MAT-02, LM394 (expensive! 
> 20
> pairs needed!)
> *or*
> (3) use hand matched discrete transitors (unexpensive, but requires a lot 
> of
> work.)
>
> Also on the board will be the complete power supply (except the mains
> transformer),
> and you can either connect a small transformer with 2 * 18V AC secondary
> voltage,
> *or* connect a single 18V AC source such as a Wall Wart.
>
> All pots and jacks and LEDs will be connected externally with flexible 
> wires
> to allow some flexibility on the form factor (19" rack enclosure, or
> tabletop box,
> or even an oversized stomp box).
> The PCB has a rather small size for what it contains (90mm * 160mm), but
> it's probably
> too big to fit behind MOTM or other typical modular front panels.
>
> I'm currently in the process of having a first prototype made.
> I may also create a Schaeffer front panel later (haven't decided on 19" 1U
> or Tabletop
> version yet.)
>
> So, is there any interest for others to buy these PCBs, when / if the 
> thing
> works as
> intended?
> In the past, I've mainly built on veroboard and had to turn down requests
> for pcb boards,
> or even for readily assembled modules. Now, that I've bought a layout
> software, the
> situation has slightly changed for the better :)
>
> So, if you're interested in getting a board, let me know.
> Right now, I have no idea what it will cost - keep in mind the whole 
> project
> will not
> be cheap, with all these transistor pairs!
> I won't offer complete kits. If there's enough demand, I'll sell the naked
> PCB boards,
> and publish the building information on my web site.
>
> Let me know if you're interested, to find out if it's worth the effort.
>
> JH.
>
> _______________________________________________
> Synth-diy mailing list
> Synth-diy at dropmix.xs4all.nl
> http://dropmix.xs4all.nl/mailman/listinfo/synth-diy
>



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