Original Instructions & Demo Tape for MOOG Bode Frequency Shifter

Note: Auction links are affiliate links for which the site may be compensated. via this auction
via the seller: "Up for bids is a set of both Original Short Form Operating Instructions and a Demo Tape for the MOOG Bode Frequency Shifter Model #735. I used to have this modular part as part of my modular system which I bought in the late 1970's and sold several months ago. I recently found these 2 items. I'm sure that someone will find them of great interest, since this was one of the rarest Moog modules ever produced.

The instructions appear to have come directly from the Bode Sound Company, and are on their letterhead. They are the original typed instructions, and not photocopied. These instructions are two full typed pages, and a 3rd page , which is a diagram, as you can see in my pictures. (there is also a hand drawn diagram on the back page- not drawn by me)

The tape is a regular cassette tape. There is a label on the tape itself- Side A states: Demo of Bode Vocorder Model No. 7702. Side B states on the label- Demo of Bode Frequency Shifter Model 735. The cassette is checked Dolby. Please note: I have never listened to this tape (although looking back I don't know why I didn't). It was included when I bought the module many years ago. I cannot guarantee what is actually on the tape, but I have no reason to presume that it is anything other than what the label states. The tape looks to be in good condition, with no hang-ups (turns freely), but for the reasons stated above I cannot guarantee that it works, and I don't have a cassette player on which to test it. Remember.....it is 35 years old!!! So I am offering it as is, and including it with the Instructions, which I am sure will be quite interesting to you."

Buchla at Columbia University - Prototype VC Filter

via the I Dream of Wires Gallery on Facebook
(click through for more)

Top: "Terry Pender of the Computer Music Center at Columbia University with a selection of Buchla 100, 200, Bode frequency shifter prototypes and a Serge system."

Bottom: "Terry Pender of the Computer Music Center at Columbia University with a prototype Buchla Voltage Controlled Filter."

Charlie Chaplin through a Bode Frequency Shifter

YouTube Uploaded by WorksLimited on Nov 29, 2011

"Just a little demo video to show the condition and function of a Bode Frequency Shifter."

Nice Emu modular.

via this auction

"Bode Frequency Shifter Model No. 735 Mark II. Rack mount voltage controlled frequency shifter from the workshop of the legendary Harald Bode. This unit was manufactured by the Bode Sound Co., I believe in 1973 (serial is 735207)

The unit has a 115/230 switching power supply with IEC 60320 power receptacle. Standard IEC cable is included. The unit has spent the last 38 years in a climate controlled facility, purchased directly from Harald Bode personally. Prior to auction it was fully inspected and tested with a modular synthesizer as a control voltage/sound source. All functions, jacks and panel controls are working perfectly. The sound quality is what you expect from a Bode instrument."

Bode Frequency Shifter model 735 mark II

via this auction

SN 7305

"Bode Frequency Shifter Model No. 735 Mark II. Rack mount voltage controlled frequency shifter from the workshop of the legendary Harald Bode. This unit was manufactured by the Bode Sound Co., I believe in 1973 (serial is 735207)

The unit has a 115/230 switching power supply with IEC 60320 power receptacle. Standard IEC cable is included. The unit has spent the last 30 years in a climate controlled facility...

Please see this link for some more information on the 1973 model:
experimentaltvcenter.org/history-electronic-sound-modification

Analogue Systems RS-240 Frequency Shifter Demo

YouTube Uploaded by pjoris2 on Aug 7, 2011

"A quick demo of the Analogue Systems RS-240 Frequency Shifter I bought a month ago and just managed to connect in my eurorack modular. Every sound in the video, apart from the delay, is made with Analogue Systems modules -- still hoping for that sponsoring contract ....

The demo starts with a basic patch of 2 RS-95 oscillators (pitch controlled by the AS Sorceror keyboard), through an RS-165 signal mixer in the RS-110 multimode filter. The lowpass output of the filter then goes in the RS-180 VCA. The VCA and the filter cut-off are both controlled by an RS-60 envelope generator, which is triggered by the clock output of the RS-200 sequential controller. In addition to the envelope output, the filter cutoff is also controlled by the triangle output of an RS-80 VC-LFO. For this the envelope and LFO output are combined in a RS-160 control mixer. The first minute of the video give this untreated sequence. I try pointing out the patch cords and signal path.

After this I plug the output from the VCA in the RS-240 Frequency Shifter. The A (downward shifted signal) and B (upward shifted signal) outputs are send to two channels of my mixer panned hard left and right. The frequency shift is modulated by the output from the RS-200 sequential controller -- so giving a different shift for each step -- and the triangle output from a second RS-80 VC-LFO.

I show the different sounds resulting from varying:
(a) the scale of the RS-240, this switch controls the amount of maximally possible shift from 0 to 5000Hz;
(b) the amount of sweep from the LFO (by varying the output level of the LFO);
(c) the amount of variation from the sequencer (by varying the range of the output of channel A of the sequencer).

After a few minutes I add some delay (courtesy of an Ibanez DM1000 early 80s digital delay) of the mixed output of the RS-240 to give further variation.

This is my first patch with the RS-240 (Bode) Frequency Shifter, but I like the sounds coming from this and there are few demos of this module on the internet so I hope you will enjoy it too."

Korg Monotribe with A.S. rs240 Bode Frequency Shifter module

YouTube Uploaded by bigcitymusic on Aug 8, 2011

"Here is the Korg Monotribe, at first dry, then patched through the Analogue Systems rs240 Bode Frequency Shifter. Nice!

www.bigcitymusic.com

Thanks to Josh Flynn for shooting the video for us."

rs240 bode frequency shifter and double andore and some reverb delay.

YouTube Uploaded by DrOctave1 on Aug 6, 2011

"RS240 Bode frequencey shifter and double andore and reverb delay and hertz donut in there makeing noises that please my ears."

Rare Vintage BODE FEEDBACK STABILIZER

via this auction
"Up for auction is a rare BODE 742XR "Feedback Stabilizer". Apparently, this is a variation on Harold Bode's "Frequency Shifter" design (as used by Moog in the coveted Moog modular series).
This version was originally geared towards feedback suppression applications (hence the name), and was generally used for live sound situations. I'm told that it has potential for modification into the "frequency shifter" zone, but, haven't really looked into it further. I DID, however, put signal through it, and it does seem to alter the audio (a phasing "tremolo" effect, of sorts), albeit subtle. The potential for modding it to do more seems to be there, but I'll leave that for the next owner to figure out. Generally, it does seem to work as originally intended, but could probably use calibration.
On the back are two empty sockets for line input/output transformers, which were offered as an option (which would be accessed via the barrier strip on the back of the unit) but are not necessary to the functioning of the unit, as the inputs and outputs on the front are the "normal" connections. Here's a link: http://www.vasulka.org/archive/Artists1/Bode,Harald/FeedbackSynth.pdf"

CLICK FOR MORE »

TUTTIVOX Tube Organ/Synthesizer

via this auction
Note the logo looks like ttivox. I'm guessing the "Tu" broke off.

"JÖRGENSEN TUTTIVOX Tube Organ

Historic electronic music instrument like polyphonic Clavioline
[Googlish]
The Tuttivox was prepared in 1946 by Jorgensen the company in Dusseldorf, is a development of the famous music electronics engineer Harald Bode, and Rene Seibold.

The Tuttivox was prepared in 1946 by Jorgensen the company in Dusseldorf, is a development of the famous music electronics engineer Harald Bode, and Rene Seibold.

Harald Bode is a developer of multi Monica Hohner, the Melochord, the Bode Frequency Shifter and later known as the inventor and chief designer of Bob Moog. The Tuttivox fits seamlessly into these developments, the pioneer of electronic music instruments and is a genuine piece of musical instrument history.

The Tuttivox fits seamlessly into these developments, the pioneer of electronic music instruments and is a genuine piece of musical instrument history.

Musically it is a polyphonic, which is more consistent playable organ based on vacuum tubes (organ). According to this design principle is generated a very lively, full and warm sound. This is similar to the known Clavioline, or the company Solovox Hammond, but they are monophonic only playable.

This is similar to the known Clavioline, or the company Solovox Hammond, but they are monophonic only playable.

By Tuttivox similar sounds from the tornadoes hit Telstar (1962), the hit Runaway by Del Shannon (1960), the play Baby you are a rich man of the Beatles (1967) and the famous Red River Rock by Johnny and the Hurricanes ( 50) are known. The Tuttivox contains over 40 tubes, 36 for sound generation. There are 3 foot positions available and 36 filter settings, which can all be combined to enable a variety of tone colors."

CLICK FOR MORE »

Bach's GIGUE FUGUE in G Major - on an 100% analog monosynth - PREVIEW!

YouTube Uploaded by syntesen on Apr 26, 2011

"-EDIT: To see where I'm currently at with the track, here's the Ableton screenshot shown briefly in the video: http://dave.gl/jsb_ableton.png !!!

This is a quick preview of my latest work. I recently purchased an MFB Microzwerg analog patchable synthesizer, so I just had to record a beautiful Bach work with it.

The Microzwerg is, indeed, 100% analog. The only digital part is the MIDI to CV/Gate converter. Apart from that, it's VCO's, not DCO's... and it's just sheer beauty to play around with!

Now, to record the track - totally like Wendy Carlos did, I suspect - just one note at a time, without MIDI sequencing, just pure hand-played... and creating patches as you go, as there's no patch storage, so the sounds will change (which rather makes the track come alive!) is really great fun, but it's also a hefty amount of work!

So please, comment, say what you think! If you like it, great, I could use some encouragement to finish the last ~65% of the music score. If you don't, well, I'd like to hear that as well!

All the best & love,
David

————|RECORDED WITH|————
-- Apple iMac 21.5"/Core 2 Duo 3.06GHz/8GB DDR3RAM
-- MFB Microzwerg synthesizer
-- Lexicon digital reverb unit
-- Bode-like Linear Frequency Shifter (used for phase-shifts)
-- Extremely cheap Behringer Chorus Pedal
-- M-Audio KeyRig49 cheapcheapcheap MIDI keyboard"

Moog Synthesizer 1630 Bode Frequency Shifter front panel

via this auction

"Incredibly rare. This is the front panel with the switches, jacks, LEDs and pots only! This is not the complete module. This is a left over assembly from the original production, it was never completed as a module at the Moog factory. I received this in trade from a former Moog employee. Some minor marks on panel but otherwise in good shape. Being sold "as is"."

Bode Frequency Shifter cased & psu

via VEMIA

"Moog / Bode Frequency Shifter 1630 The Bode Frequency Shifter was originally designed for use with Moog modular systems. The sound of the Bode is unique – it produces highly complex waveforms by shifting not only the fundamental but all input frequencies by the same amount. The result: non-harmonic relationships between the frequencies in the output signal. This particular one comes in a nice wooden cabinet with a power supply (230 V), just as it was mounted and sold by Studio Funk Hamburg in the early seventies. Of course it can still easily be built into a modular system. The machine has been checked by a tech recently and is technically in a very good condition. The wooden cabinet shows minor signs of usage. A copy of the original (unfortunately not complete) description by Studio Funk in German language and some notes from the moog modular systems owner’s manual on the Bode are included as well."

Gerbil on Jupiter (quick FS1A beat)

YouTube via neandrewthal | October 20, 2010

"I was thwaking some resonating LPG's going through the Jurgen Haible frequency shifter and I was pleased that the result reminded me of my favourite electronica group who I'm told used a Bode Frequency shifter on their trademark fat, wobbly basslines. See if you can guess which one it is ;)"

BSF-1 - Virtual Bode Frequency Shifter

"The BFS-1 is a VST emulation of the famous Bode frequency shifter.

The original unit was available as an expensive module for the Moog™ modular system.
Now you can get this special sound into your PC for a reasonable price.

The frequency shifter is not a pitch shifter, which changes frequencies by a multiplikation. Instead it shifts all frequencies/harmonics by adding a fixed amount. The sound reminds to a ring modulator, but unlike this, it is possible to get the upshifted and downshifted signal seperately.

Unlike a ring modulator, the frequency shifter is also capable of changing the signal by a low amount, e.g. 1 Hz, to obtain effects known as “Barberpole flanging”.

This plugin has some additional features like delays for each section, an LFO (all host synced), an envelope with MIDI trigger and an envelope follower to modulate shift and/or volume."

Samples and download at http://music.service-1.de/html/bode.html

Moog Bode Frequency Shifter Update

See the update in this post for an interesting comment from Michelle Moog-Koussa.

Moog Bode Frequency Shifter model 6552 Owned by Walter Sear

via this auction

"This auction is for a super-rare rack mount Bode Frequency Shifter Model 6552 by R.A Moog. This is from the personal collection of Phil Cirocco of CMS / Discrete Synthesizers. This is a once in a lifetime opportunity to own a rare piece of electronic music history.

This is serial #1001 and is the very first Frequency Shifter produced by R.A. MOOG. This particular 6552 was once owned by the great Walter Sear. It features ring modulator diodes that were hand selected by Harold Bode himself! It is listed in the Moog Archives http://moogarchives.com/ on the left menu select: "lists and charts", then: "custom sales" then: "frequency shifter".

There were 2 major incarnations of frequency shifters made by Moog/Bode. The first one (model 6552) is the one you see here. It is all discrete and uses actual diode rings and transformers for its ring modulator circuits. The second version (model 1630) is an op-amp chip version that uses balanced modulator ICs for its RM circuits. The second version, while being more convenient, does not sound anything like the first version.

I can say with confidence that you will never see one of these for sale again in your lifetime.

This Frequency Shifter is in excellent condition. There are no scratches on the front panel. It is #1 out of a known total of 11 units made. It was made by R.A. Moog under contract with Harold Bode. It is all original and functions perfectly. It is NOT a clone and it has a valid serial number and pedigree. It was recently calibrated here at CMS. It uses terminal strips in the back as all early Bode rack mount units do, so you will have to use a patch-bay nearby."


This one in via Keld.

Update via Michelle Moog-Koussa: I heard from Michelle Moog-Koussa, Bob Moog's daughter and Executive Directory of The Bog Moog Foundation. She stated, "I'm 99% sure that the model number and serial number are written in Dad's handwriting.

This piece was issued on August 21, 1968. Thirty-seven years later to the day the frequency of the whole electronic music community would shift as Bob's body left us......."

Synth Museum book NOS 1994

via this auction

"This was produced to celebrate the opening by Bob Moog of what was then the biggest synth museum in the world. The foreword is written by Bob Moog.

Full colour large-format paperback, laminated cover, 118 pages, full of excellent pictures of the great synths in the collection.

As the Museum doesn’t exist any more, it’s highly unlikely that the book will ever be re-printed. I believe I have the last brand-new copies available.

Instruments covered include: ARP Solina, Pro/DGX, Solus, Little Brother, Omni, Omni II, Blue Meanie, 2500, 2600, Sequencer, Odyssey;

Buchla 100, 200, 700;

E-mu Modular, Emulator II;

EDP Wasp Special, Gnat, Spider;

EML 101, 200, 300, 400, 401, 500;

EMS VCS3, AKS, Pitch-Voltage Converter, Synthi 100;

Korg PS3100, 3200, 3300;

Moog Liberation, Sonic 5, Sonic 6, Bode frequency Shifter, Syn Amp, Vocoder, 12-Stage Phaser, Modular 3c, 15, 35, 55, 3P, Memorymoog, Micromoog, Prodigy, Minimoogs, Multimoog, Polymoog, String Filter;

Oberheim 2-Voice, 8-Voice, Matrix-12, Xpander;

Polyfusion modulars;

Roland System 700, VP330, System 100M, MC4B, MC8, MC202, TR808, TR909, TR55, Revo 30, TB303, JP4, JP8, SH-5, Chorus & Space Echoes;

Sequential Prophet 5, 10, Split 8, Pro-One;

Birotron, Chroma, Ondioline, Kobol Expander, PPG 2.3 & Waveterm B; Gleeman Pentaphonic, Synthex, Wavemakers, OSCar, Formant, CS-80, etc..

Who's selling: my name's Peter Forrest. I've been writing about synths, keyboards, effects and recording gear for nearly 20 years now, and I run an internet auction called VEMIA (Vintage Electric Musical Instrument Auctions) which specialises in synths, drum machines, effects, and so on."

Peter has a number of other items up for auction here.

Moog Bode Frequency Shifter 1630

via this VEMIA auction

"Very rare and sought after Moog item in a beautiful condition. Recently fully overhauled and calibrated."

Remembering Bob Moog

[ Note: This post stays on top for the day. Tons going up below. Originally posted at 8:36 AM PST. ]

Today marks the fourth year of Bob Moog's passing. Play a little something for him today.

Be sure to visit The Bob Moog Foundation, and Moog Music where you'll find this wallpaper free of charge.

Don't forget, the "Waves of Inspiration: The Legacy of Moog Museum Exhibit" runs from August 29 - April 30. Keith Emerson and others will be there opening weekend.

Thank you for everything Bob. The synths, the inspiration, the humor, positive vibes and the magic.

Update: Mark Pulver's Moog tattoo. Mark was good friends with Bob Moog. I remember him getting this tattoo after his passing.

BTW, if you have anything Moog specific you'd like to send in, feel free. You can reach me at matrixsynth at gmail. Of course feel free to comment.

Also, I don't ask for a dime to run this site. I've had people suggest I put up a Paypal Donate Here button. I don't because I do have ads on the site and I believe in offering the site for free. But if you do want to donate, even just a few bucks, donate something to The Bob Moog Foundation. Little donations can add up. They are keeping not only Bob Moog's memory alive, but the magic and history of synths.




Update: On the technical side of things, here is a list of patents (creations) from Bob Moog via Jerry on the SDIY list: "well to name a few, "Voltage-Controlled Electronic Music Modules" (R.A. Moog, Journal of the Audio Engineering Society , Vol.13, No. 3, pp 200-206, July 1965...

Update on the Patents via ASSI:
Here's the fulllist of patents where he is named an inventor:
EP000000157821A4 PEPPER WILLIAM JR MOOG ROBERT A [DE] LEITFÄHIGE
ELEKTRODENMATRIX UND MATRIX VON WIDERSTANDSELEMENTEN ... no
EP000000157821A1 PEPPER WILLIAM JR, US MOOG ROBERT A, US [DE] LEITFÄHIGE
ELEKTRODENMATRIX UND MATRIX VON WIDERSTANDSELEMENTEN ... yes
US000004778951A PEPPER JR WILLIAM, US MOOG ROBERT A, US [EN] Arrays of resistive
elements for use in touch panels and for producing ... yes
US000004280387A MOOG ROBERT A [EN] Frequency following circuit yes
US000004213367A MOOG ROBERT A, US [EN] Monophonic touch sensitive keyboard
yes
US000004202238A MOOG ROBERT A, US [EN] Compressor-expander for a musical
instrument yes
US000004180707A MOOG ROBERT A, US [EN] Distortion sound effects circuit yes
US000004166197A MOOG ROBERT A, US WALBORN RICHARD M, US [EN] PARAMETRIC ADJUSTMENT
CIRCUIT yes
US000004117413A MOOG ROBERT A [EN] AMPLIFIER WITH MULTIFILTER yes
US000004108041A MOOG ROBERT A COX ROGER FLAVIUS [EN] Phase shifting sound effects
circuit yes
US000004050343A MOOG ROBERT A [EN] Electronic music synthesizer yes
US000003475623A MOOG ROBERT A [EN] ELECTRONIC HIGH-PASS AND LOW-PASS FILTERS
EMPLOYING THE BASE TO ... yes
WO001985001375A1 PEPPER WILLIAM JR, US MOOG ROBERT A, US [EN] CONDUCTIVE
ELECTRODE ARRAYS AND ARRAYS OF RESISTIVE ELEMENTS FOR ... yes

Other patents listed at the site of Don Tillman are either from employees of Moog
Music or related to some inventions that have been used in Moog products (like the
Bode frequency shifter). This is not to take away from Bob, but I'm sure he would
have been the first to point out that some other guy had invented something. The
patent family he's got together with Mr. Pepper is of course for the touch panel
for the Voyager.
Polyphonic Modes
US 4,778,951: Arrays of Resistive Elements for use in Touch Panels and for Producing Electric Fields"

Update via The Bob Moog Foundation:
"August 21, 2009 -- A Moog Day of Rememberance and Celebration
When August 21st comes around each year, we pause to remember Bob and the remarkable legacy that he left for us all to enjoy. His impact is so widespread that people remember him in all kinds of ways that are meaningful to their particular connection with him. Take a moment today to pay tribute to Bob by:

* Connecting with Bob through your instrument. Lay down a killer lead on your synth or play an ethereal melody on your theremin.

* Listening to some of your favorite Moog tunes. Bob loved working with musicians and fed off their creative drive. He was often astonished at what they could do with his instruments.

* Going out and hear some live music tonight. Bob believed deeply in live music as a force that brings people together in community.

* Reading about Bob's life, work, and legacy. Visit the CaringBridge site and read Ileana Grams-Moog's reflection on today's significance.

* Supporting the Bob Moog Foundation. We carry Bob's legacy forward by inspiring and educating people through electronic music. Donate here so that we can continue our important work.


Today we also celebrate the Bob Moog Foundation's third anniversary of making waves. Next week we head to the Museum of Making Music in Carlsbad, CA for the opening of the first exhibit featuring Bob's archives. The exhibit, Waves of Inspiration. The Legacy of Moog, pays tribute to Bob's impact and celebrates his legacy, just as we are doing at the foundation today.


The Bob Moog Foundation

Make Waves by donating to the Bob Moog Foundation"

Update via Richard Lainhart in the comments:
"Here's a link to Part 1 of Jordan Rudess and Richard Lainhart's Moog Birthday Space Jam, from May 23, 2004, featuring an introduction by Bob Moog:

http://www.otownmedia.com/Polaris_Part_1.mp3 [link updated]

"50 years ago, American maverick inventor Robert Moog began developing electronic instruments that altered the course of modern music for all time and have since become an integral part of our musical culture. Jordan Rudess, keyboard virtuoso, and Richard Lainhart, synthesist extraordinaire, will be performing live online on Sunday, May 23, at 1 PM Eastern Daylight Savings Time, to honor Bob Moog on his 70th birthday, and on the 50th anniversary of his company Moog Music. We'll be using old and new Moog instruments exclusively, including a vintage Mini-Moog, a modern Moog Voyager Mini-Moog, Arturia's Moog Modular V software, and a Moog Etherwave Theremin, in a classic electronic space improvisation streaming live on the Internet from O-Town Live."

Bob was a great man, and a good friend, and we still miss him."

Update: new flickr images in today

Vintage analog synthesizer - Moog

flickr by nra24

Below: moog hockey
Hmm...
flickr by theres no way home

Update: the Moog hockey table has been verified as real. You might remember the Moog phone. Note these were made by Moog in the 80s long after Bob Moog left the company.

Update via NOISECOLLECTIVE
Saint image below with Moog and Roland and: "Here are some pictures of my moog prodigy exposed @the past 'TORINO SYNTH CLINIC'"

Update on the hockey game via brian in the comments: "It's not called Moog hockey, but "Super Chexx" hockey. Sadly, the Super Chexx game has ALWAYS been collectible in the arcade world anyway, due to it's clear plastic bubble look and the sound effects.

With "sound by Moog" written up there at the top as I recall. It sounds REALLY bad, but grainy as hell in a good way. I'd be surprised if it was 8-bit. More like 4..."

Modcan DUAL FS 65B

via Modcan where you'll find samples
"As with many modules in a larger system "One is good but two is better". For Frequency Shifters the Dual FS 65B is a two for one
and includes Ring Modulation and phase effects modes as well.

The 65B is an entirely digital interpretation of the standard Bode Frequency shifter model which achieves numerous significant benefits over its analogue predecessor, primarily the dual configuration.
Other advantages include stable low distortion quadrature sine carrier for accurate sideband generation, digital math eliminates feed thru error found in typical analogue multipliers . No need for squelch circuitry. Other benefits include absolute stability at low shifts, low noise signal path and zero maintenance calibration ...EVER. There are probably only a handful of Bode FSs in the hands of users that are ever within factory specs at any given time due to complicated and costly calibration procedure. With the 65B that will never be an issue and you will always have an accurate and precise instrument regardless of ambient temperature or age. Analogue Frequency shifters still maintain superior high frequency response over digital but due to the nature of the effect the difference is small.
Another important consideration is that it would be both cost and space prohibitive to implement a matched set of dual FS in analogue with similar features and performance.

The real fun begins when the two independent FS sections are internally patched in series and parallel configurations via the mode selection control. This allows for some seriously altered stereo effects with near 3D results.

Module Highlights:
* 2 independent Frequency Shifter channels in one package
* 11 modes including FS, Ring Mod and Phase effects
* CV and 1V/oct control of shift
* On-board internal feedback controls for each channel
* Clip indicators
* +/-5kHz Exponential Shift range
* Through Zero operation
* High Quality Codec
* 16bit Audio
* Zero calibration maintenance
* 20Hz-20khz response
* Modest current consumption
* Firmware by Eric Brombaugh

Specs:
Sample Rate: 45kHz
Sample Resolution: 16-bit
Output: typical 2V RMS@1Kohms
Input: typical 5V pk-pk@100Kohms
Input CV: 0 - +5V @100Kohms
Power: +15V @130mA, -15V @20mA"