Thonk Ltd

Thonk Ltd: DIY synthesizer kits and modular components

Thonk Ltd operates an online shop dedicated to DIY synthesizer kits and modular synth goods. Its catalogue is organised around Eurorack DIY kits, desktop synth kits, accessories and a large parts section, with prices listed in pounds sterling and shown excluding VAT.

Kits for building Eurorack and desktop synths

The kit range is split into several tiers. Full kits sit alongside beginner kits and partial kits, and there is a separate category for builds that require no soldering. Desktop synth kits form their own group, as do the 1U Tiles. The catalogue also lists panel and PCB sets, blank panels and tools for kit building.

Brands stocked

The shop carries modules and kits from a long list of makers, including 4ms Company, ADDAC System, AI Synthesis, BASTL, Befaco, BELA, CCTV, CuteLab, Cutlasses, Djupviks Elektronik, Divkid, Erica Synths, Emute Lab, Expert Sleepers, Isn'tses, Kassutronics, Ksoloti, Look Mum No Computer, Making Sound Machines, Molten Modular, Music Thing Modular, Mutable Instruments, Mzourack, Neutral Labs, NOH Modular, Nyström, Patching Panda, Plinky Synth, Random Works, RYK Modular, Scaepe, Sebsongs, Shakmat Modular, Tesseract, Threetom Modular, Timo Rozendal, Vostok Instruments, Wirehead, Zlob Modular and Zlosynth Instruments. Thonk Synth appears as the shop's own line, with modules such as the Double Bubble VCF, Triple Mod, VC4 and VCO offered as full DIY kits.

Components, knobs and accessories

Beyond complete kits, the parts catalogue covers switches (SPST, SPDT, DPDT, 3PDT and push-button, toggle, slide and rotary types), jacks in 3.5 mm, 1/4 inch and banana formats, and potentiometers in T18-shaft, D-shaft, round-shaft, trimmer and slider variants, including single and dual gang and centre-detent models. The knob selection is grouped by style, with 808, 1900h, Erica, MXR, Rogan, Sifam, Spectrum, Stubby, Synth Pointer and Tall Trimmer Toppers among the listings, plus slider caps, rubber and soft knobs, metal knobs and knob accessories.

Eurorack DIY essentials are also stocked: blank panels, power cables, flying bus cables, IC sockets, LEDs, male and female headers, power headers, rack screws, SD cards, standoffs and prototyping supplies. The semiconductors section includes ICs, transistors, matched transistor pairs and Tempco parts, and there are tools for soldering and desoldering as well as hand tools. Power supplies, cases, patch cables and clothing and merchandise complete the offer.

Modules by function and size

The shop lets buyers browse by module function, with categories for clocks, controllers, distortion, drums, effects, envelope and LFO, filters, logic and switching, mixers and panning, modulators, oscillators, quantisers, random and noise, sampling, sequencers, stereo, synth voice, VCAs and attenuators, waveshapers and utilities and multiples. A separate filter sorts modules by width in HP, from 1 HP up to 74 HP.

Promotions and customer information

A sale section lists discounted items, and gift vouchers and a discounts and promotions page are part of the shop. The site also publishes a frequently asked questions section, a page for US customers and information on tariffs, a 30-day returns policy, shipping details, company registration and terms and conditions. The storefront displays a rating of 4.9 described as excellent on Trustpilot, attributed to the information available at the time of writing this profile.