Log In / Register
Account
More Info

Skip to navigation Skip to content

£0.00 0 items

Shop
Brands
- All Brands A-Z
  
  4ms Company
  
  ADDAC System
  
  AI Synthesis
  
  ALM Busy Circuits
  
  AtoVproject
  
  BASTL
  
  Befaco
  Black Noise
  
  CCTV
  
  Clacktronics
  
  Cutlasses
  
  Dannysound
  
  DE – Djupviks Elektronik
  
  Divkid
  
  Erica Synths
  Expert Sleepers
  
  Feedback Modules
  
  Fonitronik
  
  Frequency Central
  
  Gods Box
  
  Infinite Digits
  
  Kassutronics
  
  Ksoloti
  Making Sound Machines
  
  Molten Modular
  
  Music Thing Modular
  
  Mutable Instruments
  
  Neutral Labs
  
  NOH Modular
  
  NYSTRÖM
  
  Patching Panda
  Plinky Synth
  
  Prok Modular
  
  Robaux
  
  RYK Modular
  
  Sebsongs
  
  Shakmat Modular
  
  Tesseract
  
  Thonk Synth
  Threetom Modular
  
  Timo Rozendal
  
  TouellSkouarn
  
  Venus Instruments
  
  Vostok Instruments
  
  Wirehead
  
  Zlob Modular
  
  Zlosynth Instruments
Function
- 1U Tiles
  
  Clocks
  
  Controller
  
  Distortion
  
  DIY Utility
  
  Drums
  
  Effects
  Envelope / LFO
  
  Esoteric
  
  External / MIDI
  
  Filter
  
  Logic / Switching
  
  Mixer / Panning
  
  Modulator
  Oscillator
  
  Passive
  
  Power
  
  Program / Development
  
  Quantiser
  
  Random / Noise
  
  Sampling
  Sequencer
  
  Stereo
  
  Synth Voice
  
  Utility / Multiple
  
  VCA / Attenuation
  
  Video
  
  Waveshaper
HP Size
- 0 HP
  
  2 HP
  
  3 HP
  
  4 HP
  
  5 HP
  
  6 HP
  
  7 HP
  8 HP
  
  9 HP
  
  10 HP
  
  11 HP
  
  12 HP
  
  14 HP
  
  16 HP
  17 HP
  
  18 HP
  
  20 HP
  
  22 HP
  
  24 HP
  
  26 HP
  
  28 HP
  30 HP
  
  32 HP
  
  34 HP
  
  42 HP
  
  44 HP
  
  46 HP
  
  50 HP
Eurorack
Synth DIY Kits
Parts
__SALE PRODUCTS__

🔍 Search For Products
__SALE PRODUCTS__
Account / Log In / Register
Eurorack
Desktop Synth Kits
Discounts & Promotions
Gift Vouchers
Brands
HP Size
Module Function
All Parts
- Knobs
- Potentiometer
- Jacks
- Semiconductor
- Switch
- Tempco
News
CONTACT

Home / Brands / Expert Sleepers

Expert Sleepers

Filter Products

HP Size

Function

Price

— £

–

09999999999

Clear

Reset Filters

Sort By

Hide out of Stock Items

Showing all 4 resultsSorted by latest

Floating Ring Cable – 1.4M
£3.99 (Excl. VAT)
Sale!
Expert Sleepers – 1U Display PCB
Sale! Original price was: £6.50.Current price is: £2.49. (Excl. VAT)
Expert Sleepers – 1U Display – Full DIY kit
£49.00 (Excl. VAT)
Expert Sleepers – Tiny MIDI Breakout – Full DIY Kit
£25.00 (Excl. VAT)

Showing all 4 resultsSorted by latest

Filters

Hide out of Stock Items

HP Size

Function

Price

— £

–

09999999999

Clear

Currency converter

USD, EUR, AUD, CAD & JPY do not include PayPal fees. For rough guide only.

GBP
USD
EUR
AUD
CAD
JPY
Reset

Instagram

thonksynth

Sebsongs Rhythmatic is a fully featured analog dru

Sebsongs Rhythmatic is a fully featured analog drum machine with six voices from the classic Roland CR-78.

Buy now in assembled OR DIY form at Thonk via the link in bio or visiting Thonk.co.uk

It has Bass Drum, Snare, Conga, Rim, Hats and Cymbal, expanding on the original with adjustable tune and decay controls.

A key feature of Rhythmatic is the big knob in the top centre. This knob and CV jack control a random parameter, adding or subtracting steps from the pre-programmed patterns. For a more busy pattern, turn clockwise, more sparse? turn it the other way! Use it live performance to add quick random fills on the fly. Holding the shift button turns the random knob into a 4 bar loop to record pattern changes and movement on the random knob. Modulate it with whatever you want via the random CV input.

Sequence externally or internally, with 64 programmable drum patterns. Program either using the buttons on the front panel, or via USB with the online pattern editor. Original CR-78 factory patterns are included and can be edited, stored, and switched live via CV. Each drum voice can have its own sequence length for experimental polymetric sequences. The factory patterns contain many of the original CR-78 patterns plus pattern banks created by Sebsongs Modular, Konstantine and Salkinitzor.

Each individual drum has a mute option with clear LED feedback for performance. Each drum has a configurable input/output for each of the voices which can be set as either: trigger inputs for external sequencers or as trigger outputs for controlling other gear from the built-in sequencer.

Rhythmatic features internal swing per pattern and has clock and reset inputs for syncing to external clock sources. There are two audio outputs: output A contains the full mix of all 6 voices, but inserting a patch cable to output B splits the voices in half between the two outputs. All in all Rhythmatic offers a fresh twist on the classic sounds and rhythms of the CR78, with programmability and live performance features that make it a unique addition to any rack.

Introducing an FM Drum circuit that fuses analog

Introducing an FM Drum circuit that fuses analog punch with metallic tones of FM synthesis. This DIY kit offers a wide range of sounds for your patches, from kicks to toms, metallic clangs and more – a great addition of versatile, rhythmic elements to your system!

Link in bio or head over to Thonk.co.uk

Befaco now have a standalone edition of the ONEIRO

Befaco now have a standalone edition of the ONEIROI, it's called the ONEIROI POD.

This experimental synth voice focused on ambient pads and drone-like soundscapes is now on your Desktop!

In collaboration with 4ms™ Befaco have designed this custom pod to achieve the perfect match of your Oneiroi with your desktop synthesisers, effects pedals, modular synthesiser or any other kind of music gear.
A small and portable modular system to exploit the full potential of Oneiroi.

ONEIROI is a full-stereo synthesizer that easily creates dense atmospheres for hypnotic music or cinematic sound design. Featuring three oscillators, four effects, a looper, modulation with complex routing, and a randomizer.

Link in bio or go to Thonk.co.uk

The fantastic AUTOMATOR from Timo Rozendal is in s

The fantastic AUTOMATOR from Timo Rozendal is in stock now at Thonk.

The Automator is a 2-channel tempo-synced CV and Gate recorder with a big playable slider and nice buttons.

Timo has paired it here with the new SDSV+ Simmons style drum module and their FMP, it gives you instant on the spot hands on beats and recorded modulation.

Both available now at Thonk, check the link in the Thonk bio or go to thonk.co.uk and search TIMO.

The new 16MB cards for the Workshop system are out

The new 16MB cards for the Workshop system are out now at Thonk. With these cards you can check out some of the more sizeable projects out there like the fantastic 'Backyard Rain' from @briandorsey

Batch 2 of Workshop System is due soon. Check the links in the Thonk bio for the new 16MB cards and the Batch 2 waitlist.

Buy Scope now at Thonk!

Buy
Scope
now at
Thonk!

The new Labor SCOPE is a super handy add on displa

The new Labor SCOPE is a super handy add on display for the DIY.EDU Labor. The display can function as an oscilloscope, voltmeter, spectrometer and tuner, turning the Labor into a self-contained electronics development and experimentation station.

Labor aims to serve as a universal learning tool for electronics engineering, enabling users to delve into various aspects of electronics design from fundamental concepts to advanced techniques.

Link in bio at Thonk!

This easy to build high quality Thonk VCA is a 6hp

This easy to build high quality Thonk VCA is a 6hp DIY eurorack dual VCA module. Featuring nice long sliders for performance, linear and exponential modes, normalisation of audio and CV inputs and chainable as a voltage-controlled mixer. All at competitive pricing and designed in-house at Thonk.

Link in bio or go to Thonk.co.uk

Out today -Four channel analog Morphing Router for

Out today -Four channel analog Morphing Router for audio & CV. Check out the full DivKid video via the link in our bio.

We're just finishing off the last bits of our ware

We're just finishing off the last bits of our warehouse move, shipping starts tomorrow!

Out now, Five brand new Befaco utility modules. Ch

At some point today or tomorrow our Cart will warn

At some point today or tomorrow our Cart will warn you that orders may take between 7-10 days to leave us while we move to the new Thonk Headquarters in Brighton.

If you want to avoid any delay get your orders in today!

The BBD delay is in stock now at Thonk. Link in bi

The BBD delay is in stock now at Thonk.
Link in bio.

The SDSV+ is a versatile analog drum module based

The SDSV+ is a versatile analog drum module based on the classic Simmons SDS5/SDSV. The DIY kit is in stock now at Thonk.

The SDSV+ can be used for anything from toms, snares, kicks and even hat/crash-like sounds as well as FM style clangs and klonks.

This @timorozendal version takes the original sounds shaping controls and extends them more modulation and CV control compared to any design that came before!

A versatile analog drum module based on the Simmon

A versatile analog drum module based on the Simmons SDS5/SDSV from @timorozendal

LINK IN BIO, in stock now at Thonk.

UK customers only. We have a batch of nice Tektron

UK customers only. We have a batch of nice Tektronix scopes at a great price. Just the right spec for Synth DIY. They are selling pretty fast.

Also after 13 years of existence we are selling a few bits of our large synth library (HOARD) too, and some older synth DIY products now and then. It's something that will be gradually fed with new stuff over the next year or so.

UK customers only due to eBay restrictions.
Link in bio or search eBay for thonk_synth_diy_parts

We've added two new modules to our in-house THONK

We've added two new modules to our in-house THONK SYNTH range today.

VCA is a dual vca and mix chain module. This easy to build high quality module is a 6hp DIY eurorack dual voltage-controlled amplifier module. Featuring both linear and exponential modes, normalisation of audio and CV inputs, and chainable as a voltage-controlled multi channel mixer – all at competitive pricing. Skiff friendly!

CAS is an easy to build 4hp skiff friendly utility mixer. Mix, scale, invert and offset your control and audio voltages to dial in precise modulation. Cascading normalisation between the channels make this a super versatile swiss knife. This is a new version of the classic Cascade module originally designed by Matthias Herrman at Fonitronik - @fonik___

Link in bio or go straight to thonk.co.uk

Show More... Follow on Instagram

Links

Drop us an email
Thonk on Instagram
Thonk on YouTube
Thonk on eBay (UK customers only)

.Gift Vouchers.

.Discounts and Promotions.

Search Products

Currency converter

USD, EUR, AUD, CAD & JPY do not include PayPal or Credit Card fees or currency conversion costs. For rough guide only.

GBP
USD
EUR
AUD
CAD
JPY
Reset

Subscribe to our mailing list

We will never give your email to a third party. Typically we do not send emails more than once a month.

CLICK HERE TO SUBSCRIBE

© Thonk - DIY Synthesizer Kits & Components 2025
Privacy & Cookies Policy

My Account
Search
Cart 0

Hey, you’re not on our mailing list

Maybe you should be?

SUBSCRIBE

Email Address *

Clear