Resonant Frequency

"Welcome to Resonant Frequency.

I am an analog synthesizer enthusiast, and have attempted to create a useful resource for fellow musicians. On this website you will find a variety of articles, schematics and links related to building, modifying and playing analog synthesizers.

Please select a topic from the list of links on the left of the screen.

Check the Homebrew Synth section for information about the various synths I have built, and things that are currently under development. There are photos, schematics and audio samples of my projects

The Gear Mods page has some schematics and details of some gear I have modified including the Boss DR-110 and Roland SH-101.

The Article Archive has a dozen or so articles relating to both building and playing synths.

I have 2 seperate links pages; one is specifically for DIY-related sites, and my General Links page has links to librarians, reviews, specs and other details

Finally, I have some useful component Datasheets, electronics components for sale, some examples of my music and a search engine to help you find information."

Title link takes you there.

Synclavier

Title link takes you to more shots sent my way via skkatter.

flickr by donnacha costello.

percianterocco synth: ORGANISM 1.0

YouTube via percianterocco.
"THIS IS A NEW NOISE SYNTH IN A PLAYSTATION BOX. 3 oscillators (square wave) and many sonic possibilites....." www.percianterocco.it. via Rocco Perciante

Videoclip Computer Rock

YouTube via cyteck. "By MuSiK" via sequencer.de

MIDI

flickr by HellionYell.

click here for the full size shot.

cacophonator

Title link takes you to more shots, info, and a sample on SubtleNoiseMaker.

via Sascha

banana frac

Click here for more shots. Note this is for sale via david[AT]davidrothbaum.com

WIARD:
1) noise ring (the chance input jack does not work as designed. since this was one of my first banana conversions i was unsure of how to deal with switching jacks! and so since the chance input is/was switching i simply did not convert it properly and it is just connected to the main output, which of course is totally silly. the proper conversion can be done by rewiring it with a switch as i did on quite a few modules after this one. I just never got around to completing this one).
2) boogie filter
3) borg filter

BLACET:
4) oscillator
5) oscillator
6) time machine
7) quad vca
(this one is probably the funkiest. First of all the main output has been converted to a 1/4" jack. secondly none of the CV jacks are connected and the alt output had been changed to work as a banana to 1/8" converter. So this module now functions as a basic 4 to1 mixer with gain on the 4th channel).
8) micro lfo
(the rate & gate inputs as well as the two outputs at the bottom left of the
module were not converted to banana jacks -- this is because the plugs are mounted to
the boards)

MOTM:
9) ladder filter

BANANALOGUE
10) 3-P

TELLUN:
11) neural agonizer (this is a custom built module i built myself. The panel i designed using front panel express to fit the frac format. there were a few switching jacks that i did not convert for the sake of simplicity. as with the noise ring, one could add switches to these to make them banana if you want to. Another important thing with this module is that the boards were designed to work with a MOTM sized system so they are quite large (there are two for this module). and so the way i did it was to NOT mount the boards to the panel at all but simply screw it to the bottom of the case. You can do this to one of the Blacet frac racks if you want using standoffs which is how i did it before i made the wood case. The module uses the two very large 3 spring accutronics reverb tanks that are mounted on the back of the case.

SFEMF 2007

"The eight annual San Francisco Electronic Music Festival will take place Wednesday, September 5th through Sunday, September 9th, 2007 at Project Artaud Theater located at 450 Florida Street, San Francisco, CA 94110."

Title link takes you there. Via brian comnes.

Synthwood Pro One Prototype #3

"So basically the two prototypes #1 and #2 were scrapped. The third one which was supposed to be production #1 has now been corrected and renumbered as prototype #3 and was fitted onto Mike McKnight's rev 1.2 Pro-One. This synth will also be featured in the September article. The rev 1.2 required a bit of restoral work on the PCB to get it functioning again.

We do the conversion (you send us your donor Pro-One) now for anyone who wants it $385 shipping included in the USA."

Title link takes you to more shots. via Synthwood

Synthwood Prophet 5 Case

"This is a special order for Mike McKnight of Keyboard Magazine. We completely restored his Prophet-5 all the way down to the solder traces. It is going to be featured in an article to be published in the September issue."

Title link takes you to more shots.
via Synthwood

Black Quasimidi Polymorph

In case you missed the update to this post, there is a shot of the black Polymorph at the bottom.

Multivox MX-202 String Synthesizer

YouTube via 123synthland.

"Here's a simple audio clip of the Multivox MX-202 string synthesizer we're about to put up for sale. This is quite a rich sounding synth, thanks to the onboard ensemble effect. We feel it's a nice alternative to the ARP String Ensemble IV / Solina keyboard. Enjoy! Email us anytime at minime123@onebox.com"

Adolf Filter - Assign Mode

YouTube via eingang.
"A recording from Studio Plattform in Gothenburg, July 2007."

MOOG Multimoog

Title link takes you to shots via this auction.

"one of the most rare Moog synths-less than 1,000 were ever manufactured. (They were made in the late 1970's, maybe until 1980 or 81 at the latest.) It's an awesome sounding synth , with that unmistakabley rich warm analog sound you get from Moog oscillators and filters. This synth has 2 oscillators, and tons of routing possibilities for the modulation and ribbon controller. The ribbon is a very cool feature, as are the touch sensitive keys which allow you to vary the amount of modulation you bring in depending on how hard you depress the key. This model was loaded with a surprising amount of features for a synth this size, and some of them, such as the keyboard touch feature or the ability to morph from one waveform into another, are definitely unique to the Multimoog."

Star Instruments Synare Sequencer

Title link takes you to shots via this auction.

The seller also has some other interesting gear including the Synare 3 and 4.

MusiConics Bass Mate II

Title link takes you to shots via this auction.

# Make/Model: MusiConics Bass Mate II
# Serial Number: B-1848
# Location of Manufacture: Waco, Texas
# Crazy analog synth bass sounds
# Condition: Looks To Be In Great Condition For It's Age. Fully Functional And Ready To Go.
# Comments:Great Unit! Variable percussion decay; 8' Voice; 8'/16' Voice combination; Variable tuning.

Studio Electronics Omega 8

Title link takes you to shots via this auction.

Rhodes Chroma CPU Board

Title link takes you to shots via this auction.

Note you can get the new enhanced CC+ CPU from the Rhodes Chroma site. Many owners are upgrading their perfectly fine working Chromas to the new CPU. You can read more about the enhancements on the Rhodes Chroma Site.

Crumar Performer 2 Advert

via this auction.

"This 1970s original print Crumar Perfomer-2 ad slick is in mint condition. Single page features the descriptions and specs."

Looks like the seller has a bunch of other adverts and promotional materials up for auction.