Blue Lantern Re-Releases one of their First Modules, the Steiner 10Stage VCF

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Blue Lantern is re-releasing one of their first modules, the Steiner 10Stage VCF, based on the Steiner Synthacon filter [see the update below for their first]. There are currently only eight listed for sale via this auction.

Details from the listing:

"Model: 10 stage diode based vcf. Influenced by N. Steiner's synthacon vcf. This is a re-release for me.

width: 6hp

depth: 1.5 inches, less than 2 inches clearance.

current: soon, tba.

Controls: Cutoff, Rez, bi-polar attenu-inverter FM knob, CV knob

What does this do?
This is an analog filter that uses a 10 stage diode core influenced by N. Steiner's synthacon vcf. You get Low pass, Band pass, and High pass inputs. All of them can be used at the same time to mix different vco's. The band pass section is what really makes this filter shine.

Some blue lantern improvements include dc removal on the rez circuit, jfet power coupling, and precision trimmers for cutoff and rez.

Through hole polyester film capacitors were used for the filter.

Does this filter make all the screechy warble like all the other Steiner VCF's out there?
It can if you like that, but I ship it out tamed and very musical. There is a 25 turn trimpot on the back where you can fine adjust exactly how far you want to push the feedback resonance. This design I have does not contain the common dirty pot troubleshoot most people complain about. The inputs also have a switch jack design to quiet any input jack not in use.

If you missed out on the first generation modules I released, here is your chance to see what all the fuss was about."

Update: I asked Blue Lantern what their first module was and they had the following to say:

"The first commercial module was the 6hp Diode VCF, and then the 6hp LM4250 VCF. I have to mention Shawn from Analog Haven for really pushing me to release at the commercial level.

These were released in 2009. So it has been about 6 years. The Diode VCF went through three generations: black, green, black again, and now matt black. Each previous generation was 200 size runs, and hand made-dam those days, no more ever again. These days I do 500 runs for each product. This recent version is the first to be made on the pick and place machines.

My first module ever made and sold was an arp 4075 vcf with a clear plexiglass frac rack format cover. That was made in 2003. Since starting I believe about 35,000 pcb's have passed my hands. Either duds, prototypes, or winners."

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X1L3 - circuit bent - synth mod - Yamaha RX17 with Synthacon Filter

via this auction
see X1L3 on eBay (RSS) for more.

video at the auction and previously posted here.

"MODIFICATIONS:

***DIGITAL DELAY***
RATE
FEEDBACK
NOISE FILTER
DELAY OFF/ON

THE DELAY AS ALWAYS WITH THE WAY I USE IT IN MY MACHINES DOUBLES UP AS A NOISE GENERATOR.
EVEN WITHOUT AN INPUT SIGNAL IT CAN BE DIALED UP INTO OVERLOAD AND SOME BRUTAL NOISE
AND GLITCHING.

***SYNTHACON RESONANT HIGH/LOW PASS FILTER***
RESONANCE
CUTOFF
GAIN

THIS IS A TRUE RESONANT FILTER BASED ON THE STEINER SYNTHACON AND NOT A SIMPLE CIRCUIT BOARD MOD
BEING DESCRIBED AS A FILTER.

***2 X 8 GLITCH MATRIX***

***DAMAGE CONTROL***
GAIN
FILTER
DISTORTION

THIS IS AN EXACT CLONE OF THE CLASSIC PROCO RAT STOMP BOX. IT'S AN EXCELLENT CHOICE OF DISTORTION FOR DRUMS AND SYNTHS AS WELL AS GUITARS.
WHEN APPPLIED IT CAN ADD LIGHT FUZZ TO DEVASTATING DISTORTION. THE FILTER AT HIGH RESONANCE
SOUNDS AMAZING THROUGH IT.

***GLOWING PANEL UNDERLAY***
ALTHOUGH SERVING NO PURPOSE AS FAR AS THE SOUND GOES IT DOES LOOK COOL WITH THE LIGHTS OUT :-)

THE RX-17 HAS FULL MIDI SPEC WITH MIDI IN. THRU AND OUT. IT CAN ALSO SYNC TO MIDI CLOCK."

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Matrixsynth by vgermuse

Click here for Buchla 200e tracks by Todd Barton, aka vgermuse. The following is the track listing along with synths used for each.

1. drifting--evi-2000, steiner-parker synthacon, boss rc-20
2. being and time--steiner-parker synthacon, boss rc-20
3. metalliton--buchla 200e
4. slowEvolution--buchla 200e, metasynth 4
5. cresting--buchla 200e
6. autumnAmbience II--steiner-parker synthacon, boss rc-20
7. stormBirds--buchla 200e
8. spaceMetal--buchla 200e, metasynth 4
9. exponentialSpace--serge modular music system, roland jp-8
10. horizoning--buchla 200e
11. offering--evi-2000, boss rc-20

Steiner-Parker Synthacon Variations 2

Published on Aug 5, 2018 Todd Barton

"Headphones recommended. More explorations of Nyle Steiner’s genius switch modulation matrix on his Synthacon!"

Mutable Instruments Shruti XT Hybrid MONO/ANALOG (synthacon filter) 2012 Black

Note: Auction links are affiliate links for which the site may be compensated.

via this auction

"HYBRID ANALOG - DIGITAL / DUOPHONIC MODE / Mod MATRIX / ANALOG FILTER

Super sound and a lot of possibilities, pulled from the modular versions.

This filter board is based on Steiner Parker synthacon circuit.
The following 5 filter modes are available:
. lp
. bp
. hp
. ap
. overdrive on top of all that


Polyphony - Monophonic
Oscillators - 2 OSC + 1 NOISE + 1 SUB
LFO - Yes
Filter - Yes
Arpeg / Seq - Yes
Keyboard - None
Memory - lot of presets
Control - MIDI - CV GATE
Date Produced - 2010"

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Gotharman Synthacon Filter (Eurorack Synthesizer Module)

Note: Auction links are affiliate links for which the site may be compensated.

via this auction

"Here's something you don't see too often! This module was built for me on request by the great Gotharman, and is a clone of the Steiner Synthacon multimode 2-pole. Sounds really gritty with high resonance, especially when blending filter types!

I should mention that this particular module is a very tight fit into my Eurorack case, although you may not have this problem. The dimensions are a bit weird and it may require some maneuvering."

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Shruthi-1 synthesizer with Synthacon analog filter

Note: Auction links are affiliate links for which the site may be compensated.

via this auction

"New Shruthi-1 with Synthacon filter, Steiner-Parker core adaptation to Shruthi.
Modes available: LP, BP, HP, AP and Overdrive on top of that.
Character: ACID.
All, inside nice looking black high gloss acrylic case. White background/black characters LCD.
you will need PSU to power up this little but powerful synth (9-12v DC , at least 500mA, ended with barrel plug 5,5mm {negative} and 2,1mm pin {positive})."

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Happy Valentine's Day via Cynthia - Synthacon Filter

via Cynthia

"Howdy Matrix!
We're shipping Synthacons again.... (now our new improved Mark III design). Image Attached for your marvelous website!!

Happy Valentine's Day!
Cynthia"

BTW, I am not planning on a specific Valentine's Day post this year (I don't think I had one last), so... Have a Happy Valentine's Day everyone! Imagine if your honey gave you one of these, a Steiner Parker Synthacon Filter. :)

CGS "Cat Girl Synth" Synthacon Frac Rack Voltage Controlled Filter

Note: Auction links are affiliate links for which the site may be compensated.

via this auction

"CGS Cat Girl Synth Synthacon VCF clone in Frac Rack format."

Pic of the back below.

CGS35 Synthacon Steiner VC Filter

Published on Nov 6, 2015 Suburban Heroin Electronics

"A quick demo of the famous, rare, synthacon VCF from Ken Stone"

Steiner-Parker Synthacon Silver Face Analog Synth For Sale

Note: Auction links are affiliate links for which the site may be compensated.

via this auction

"Steiner-Parker Synthacon model 174 Silver Face offered as original and as is.
Owned since 1978. Excellent original condition with everything working."

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Steiner Parker Synthacon

Title link takes you to more shots.

via this auction.

A couple of vids showcasing the Synthacon:
one
two

LIVEWIRE Frequen Steiner in Custom Case with Mods

via this auction

"STEINER PARKER SYNTHACON SELF OSCILLATING FILTER, BY LIVEWIRE. THIS IS A CLONE FROM THE ORIGINAL SYNTHACON SYNTH. ITS A SELF CONTAINED MODULE FULLY POWERED WITH THE FOLLOWING CUSTOM ADDITIONS:

1/4" JACKS ON ALL INPUTS AND OUTPUTS

SEPARATE FILTER SIGNAL INPUTS: LO PASS, BAND PASS, AND HI PASS (DOES NOT AFFECT ORIGINAL MAIN SIGNAL IN)

CV INPUT FOR RESONANCE WITH A DEPTH CONTROL POTENTIOMETER LABELED 'AMT'.

THIS IS A GREAT CUSTOM FILTER. ALL ORIGINAL FUCTIONS WORK, THE ADDITIONS DO NOT AFFECT ITS ORIGINAL SOUND. THEY ONLY ADD FUNCTIONS AND EFFECTS IF YOU NEED THEM. FILTER CUTOFF HAS 2X CV INPUTS, WHEN YOU COMBINE THAT WITH RESONANCE CV THE RESULTS ARE AMAZING.

RUNS ON 110-240VAC HEAVY HI QUALITY STABLE POWER SUPPLY. READY TO PLUG AND USE."

Synthacon Fillter

Published on May 16, 2014 gotharman·56 videos

"A squarewave going through a Synthacon filter eurorack module, I made for a friend.
www.gotharman.dk"

STEINER PARKER SYNTHACON

images via this auction
"Here is a very scarce Steiner-Parker Synthacon silver face analog synthesizer from the mid-1970’s... Actually claimed to be more versatile than the MiniMoog, it can produce literally billions of sounds with its 3 VCO’s and dual envelope generator."

Steiner-Parker Synthacon Variations

Published on Aug 2, 2018 Todd Barton

"Taking a single note through some transformations on the Steiner-Parker Synthacon..."

You can find a handful of Steiner-Parker videos by Todd Barton in the archives here, one from way back in November 2006!

MA'AT

Published on Dec 4, 2012 by shaft9000
~grooving on a waveshifter~

"3 rows of sequencing on the cyndustries programmer drives the dual quantiser and synthacon filter.
modcan 3vco( into megaohm's synthacon filter) and dualVDO(into the 48dB filter) are the sound sources, while fx are run through the modcan phase/timbremod, digidelay and analog frequency shifter. the quadLFo and quadEG drive around ten modulation paths and the x/y stick selects dvdo waves.."

Forbidden Synthacon by vgermuse

mp3 here

via vgermuse:
"Here's my little homage to Bebe and Louis Barron's Forbidden Planet. Synthacon a la concrete techniques. Enjoy!"

Steiner Parker Synthacon VCF

via this auction



YouTube via bluelantern320 previously posted
"A KORG MS2000 LINE LEVEL SIGNAL IS PASSING THROUGH A STEINER SYNTHACON CLONE VCF . IT MAKES THE SOUND COME ALIVE WITH MID LEVEL REZ HARMONICS.
THIS DEMO SHOWS HOW IT CAN MAKE YOUR VIRTUAL ANALOG SOUND REAL ANALOG FOR STUDIO RECORDING."

Nina building a Synthacon style filter

YouTube Published on Sep 11, 2012 by Zoë Blade

"A time lapse video of Nina building a Synthacon style filter. It's the Elby Designs Panther series version of the Ken Stone design, or CGS735 for short. ("Catgirl Synth", apparently.)

We had to modify it a little afterwards to get it to work correctly, putting C211 in the other way around and replacing two of the diodes with jumper wires."