JH. Interpolating Scanner and Scanner Chorus / Vibrato

"In the 1990s, I have designed an "Interpolating Scanner", a CV-controlled linear crossfade over a certain number of VCAs, to be the center module of my JH-3 modular synthesizer. You can read all about it here, including a block diagram, schematics using now obsolete SSM chips (not recommended any longer for building), and a glimpse of its widely varying applications such as a voltage controlled crossfader, a wavefolder with dynamic breakpoints, a tracking generator with voltage controlled breakpoints, or voltage controlled non-harmonic modulator." More info including links, images and samples here.

Update: Ordering info from JH:

"Hi,

I have sucessfully built and tested a prototype of my new PCB project, and I'm starting to take pre-orders for these PCBs now.

To avoid any confusion: There is *one* PCB that allows to build two different projects:

(1) 9-Stage Interpolating Scanner Module with onboard VC LFO

(2) Emulation of Hammond Scanner Chorus / Vibrato

I've sent out two separate mails for the two applications, but it's based on the *same* PCB.

So if you want to build three Interpolating Scanner modules plus two Chorus / Vibrato devices, simply order 5 "Scanner PCBs", using the order form below.

A description of the projects can be found here.

Like the previous Tau project, the PCB allows the connection of a mains transformer + fuses if you are skilled in working on mains voltage, or the connection of an AC wallwart of about 16 ... 18V (AC), or you can power it from a clean +/-15V Dual DC power supply.

For the latter, you'll have to solder in wires, however. There was no room for a MOTM or synthesizers.com power connector.

One word to possible MOTM customers:

You can build a full-fledged Interpolating Scanner, using this PCB.

Paul has announced an Interpolating Scanner (which I've also designed) several years ago, and fairness demands that I mention this, as there is a possible overlapping customers base for the two projects.

What I'm offereing is strictly DIY (you're buying the PCB and you have to build it and fit it into your system somehow). OTOH, with a module of 9 inputs, you'll always have a bigger than standard sized module. (A 19" 2U panel with a row of 9 input jacks and 9 potentiometers above these jacks might be a good solution.)

But then again, it's an open secret that this is my personal favorite of all modules I've ever done and my motto is "You can never have enough Interpolating Scanners in a Modular" :) , so there will be room for a DIY project now, *and* (maybe) a ready made, 6-input, MOTM version later.

A description of my _first_ Interpolating Scanner (with 8 inputs and SSM VCAs) is also still online:

http://www.jhaible.de/tonline_stuff/jh_ipscan.html
http://www.jhaible.de/tonline_stuff/jh_ipsc_blk.gif

You might find this useful because of the description of possible applications and the block diagram. The new one is slightly different, with 9 inputs, and an on-board VC LFO (!). No "scan left" CV input, though.

Also watch out for updates of the official project page - this describes the PCB you're buying.

Scanner order form
=================================================================================

Email subjet line: "Scanner PCB order [n] sets of boards"

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Email text:

I'm ordering [n] Scanner PCBs

for EUR 27.00 per board

plus EUR 4.00 for shipping and handling per order.

There may be addional tax and / or customs fees in my country - these will be paid by me (the buyer), not by the seller.

I'm aware that I'm only buying a blank PCB that may help me building a Scanner module - I'm *not* buying a diy kit, not a "project" - just a pice of FR4 with copper traces. By placing my order, I agree to these terms.

My adress is:

[Full shipping adress, as it will appear on the envelope for sending you the

PCBs]

My paypal adress is:

[your paypal adress]

========================================================================================

(Don't forget the email subject line with the number of PCBs ! )

Looking forward to hear from you,

JH." you can find JH's contact info at the very bottom of this page. There's a pretty cute shot of a young one starting early at the bottom of the page. :)