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Key Nyborg Features

  • Full rugged steel/aluminium case – no plastic mouldings.
  • Hand built in Great Britain.
  • Good quality smooth potentiometers, fully sealed against dust
  • Good quality knobs with spun aluminium caps
  • High grade double sided circuit board
  • High Quality 16bit DAC for MIDI-CV conversion
  • Very stable MIDI to CV
  • Very stable analogue oscillators
  • Hand built by humans
  • True retro analogue voice and modulation circuits to give an authentic retro sound

Nyborg 12/24 Differences-

12 = has the Telemark synth’s “oberheim SEM” style filter

24= has the Leipzig synth’s “Moog” style filter

All else is essentially identical. Which filter / sound to choose? They are both amazing. Choose either and you will be happy.

Specification and Modulations Possibilities…
VCO1 Tune, Octave, PW Mod, FM Mod, Manual PW, Mod Source, Saw out,
Pulse out, Sync, Free Run
VCO2 Tune, Octave, PW Mod, FM Mod, Manual PW, Mod Source, Saw out,
Pulse out, Sync, Wide Range
VCF Low pass filter, High pass filter, Band pass filter, Notch
filter, Variable Notch filter. Cut-off, Resonance,
Modulation Amount, Mod Source, MIDI Mod, Resonance Boost
EG1 ASR envelope with trigger LED
EG2 ASR envelope with trigger LED
LFO Speed, Output Mode (Square, Triangle, Velocity CV, S+H)
SUB OSC Minus one octave, taken from VCO1
SAMPLE & HOLD For random modulation effects
MIDI TO CV CONVERTER 16 bit high resolution with auxiliary controller CV2 output
Rotary controls, Rotary switches
and Push buttonsLEDsJack socketsMIDI Sockets
229143x 6.35mm, 5x 3.5mm2
POWER External AC mains supply
ACCESORIES Mains adaptor
MIDI In, Thru
AUDIO / CV CONNECTIONS Audio Out, Ext1 (CV or Audio), Ext2 (CV
or Audio), AC power in, MIDI IN, MIDI THRU

Why Do I need this synth? What’s So Special?

Nyborg is a compact true analogue mono synth in a neat, smart, small package.

When we say ‘real analogue’ we mean that the entire audio patch and all modulation is entirely analogue, using circuits based on awesome sounding vintage 1970s designs. There circuits are not locked down by CPUs, controls are quantised and read by CPUs. With exception of the MIDI to CV circuit, which by its nature must have a digital element, Nyborg really is analogue and the sound benefit is immediately apparent!

We get may good comments about how good Analogue Solutions sound, how good, warm and full of character they are.

The synth has been designed by a musician who is a big fan of electronic music, and knows how to program a synth, not designed by an engineer. So, the modulation choices and range of sounds they produced have all been carefully thought out and quickly give you those sounds you want: huge bass, synth leads, percussion, effects, modular style sounds.

What are the Differences Between Nyborg-12 and Telemark?

They essentially share the same circuits, so will sound similar. The main differences are outlined below:

Nyborg12 Advantages / Additions

Octave switches on the VCO.

‘Free run’ setting – disconnects VCO from MIDI pitch. Good for effects or using the VCO as a modulator.

Wide setting – allowing the VCO Tune knob to have a super wide range – good for when the VCO is used as a modulator.

Q Boost on the filter – to make resonance go insane.

VCO Sub Osc is hard wired to the Mixer – for super convenience.

Much smaller than Telemark – for those with limited space.

Lower price point.

Two Nyborgs can be racked side by side using the optional rack kit,

Telemark Advantages / Additions

Plenty of signal patch points! Telemark can be more fully integrated into an existing modular system. Cross patching between the two is possible.

The patch points enable additional modulation, effects and sounds that cannot be done with the switches alone.

Ring Modulation.

The Sub Osc is not hard wired. This means it can be patched up in other ways, like a clock divider, or to half the rate of the LFO square wave.

So in summary – which to choose?

Main points are



Do you want the advantages the extra sockets give?

There are points personal to your situation!

If price and size are not an issue – then

Nyborg – the fact it has Sub Osc hard wired allows a wider range of sounds to be made without patching.

Telemark – it will do far more, but requires the work of patching.

So the summary here is Telemark will do much more than Nyborg but requires the extra effort (some patching). Nyborg will do more than an un-patched Telemark.



Nyborg is a compact analogue synthesizer. Analogue –  as in really analogue. Aside from the MIDI chip (which has to be digital), everything else is totally analogue using real transistors and op-amps. There are no CPU stabilised and quantised circuits, no DCOs, no digital LFOs and no digital EGs, as found on other so called analogue synths. The circuitry is based on designs dating back to the mid-1970s. So Nyborg has a genuine old sound.

Audio Applications


Nyborg is for use any time you need analogue sound effects, fat basses, screaming leads, beeps, tones, zaps, and all the other crazy sounds associated with analogue synthesis. Use in place of your boring digital synths and DSP soft synths.


Nyborg has an audio input socket, so you can feed external sounds through the on-board analogue filters for analogue processing.


Nyborg is able to produce electronic percussion – kick, snare, hihats, cymbal, etc.


Nyborg is pre-patched – but has such a wide range of modulation routing possibilities that it is almost as versatile as a modular and can produce the same types of sounds, without the mess and confusion of cables. It has some patch sockets that enable you to connect it to an external modular.


MIDI (DAW Use) or CV & Gate?

This unit can be used with a MIDI keyboard (or DAW, or sequencer) or you can use it with an analogue sequencer, such as Oberkorn.

It can also be used by MIDI and CV at the same time! So you could have an analogue step sequencer such as Oberkorn playing a little melody, then using a MIDI keyboard (or MIDI sequencer) transpose the Oberkorn sequence.

Circuits Included


There are two VCOs – each providing a wealth of features and modulation choices.

Controls include: TUNE, OCTAVE, MODULATION depth and destination, MOD. SOURCE (EGs, VCO audio, External CV, LFO), manual pulse WIDTH, VCO Sync

Low Frequency Oscillator

The LFO has triangle and Square wave modulation signals. The MODE switch can also be used to route Sample And Hold or CV2 (velocity) signals to the VCF and VCOs.


Nyborg uses a 2 pole 12bB per octave multimode filter. What does this mean? It uses the same filter as the legendary Telemark synth, which is similar (but not the same, having its own character) to the old Oberheim SEM. The filter is actually four types in one. Low pass, Band pass, High pass and Notch filters.

Controls include: CUTOFF, RESONANCE, MODULATION depth (- and +), MOS.SOURCE (EG, LFO, VCO audio, External CV), KEY voltage, CV2 voltage (velocity), NOTCH high/low, FILTER TYPE (high, low, band, notch).


Audio choices are the Saw or Square wave of each VCO, Noise or, for added fatness, Sub-Oscillator.


The VCA can be controlled from Gate or Envelope. It can be set to BYPASS so it is always ‘open’. This allows Nyborg to be used as an effects processor. Finally there is a CYCLE option. This sets the envelope to be constantly re-triggered by the LFO allowing for hands-off sound effects.


There are two EGs – each having control over ATTACK, SUSTAIN, and combined DECAY/RELEASE.


Great thought has been placed into modulation route choices, allowing a wide range of sounds to be produced, including percussion and ‘modular’ style sounds.


MIDI is intentionally kept simple – so you can concentrate on making new sounds and making music – not getting tied up with SYSEX programming.

You get the all important control over filter cut-off using MIDI Velocity (or a MIDI controller).

External CV Control Sockets

Nyborg can be controlled via an external analogue sequencer, such as Oberkorn, using the top panel CV sockets.

There are pitch CV sockets for each VCO PITCH1 and PITCH2, filter CUTOFF, GATE (to trigger the EGs), EXT (to feed an external CV to various circuits).

Also, on the rear panel are two spare 6.35mm big jack sockets. Using these you can route external audio through the filter. Set the VCA to BYPASS and use Nyborg as an effects processor!

Mounting Options

Nyborg can be orientated and configured in several ways;


As standard, it comes as a vertical desktop unit just like it’s big brother Telemark.


It is possible to reconfigure it so that it is a flat table top unit, like its cousin Leipzig-S is. This requires some minor screwdriver work.


In either of the above two configurations, optional wood side panels can be fitted. These screw on from the inside of the unit, so no ugly screws will be visible on the beautiful wood.


Two (or more!) units can be bolted side by side. And of course you can also fit the optional wood sides to these, or, reconfigure them to be horizontal flat units.


Two units can be bolted together (like above) and then you can also fit the optional rack ear brackets, and rack mount the whole assembly.

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