4 or 5 way passive midi thru - DIY STUFF - Look Mum No Computer Thingies
DIY MIDI thru box powered by MIDI In ? - MOD WIGGLER
MIDI Thru 1 in - 10 out splitter Complete DIY Kit midithru box | eBay
MIDI MERGER / SPLITTER 2 in - 5 out thru Complete DIY Kit midithru box | eBay
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CME WIDI Thru6 BT - MIDI Thru/Split 2-in-6-out avec DIN 5 broches et Bluetooth MIDI - transfert à grande vitesse de toutes les données MIDI, précision extrême pour tous les appareils MIDI :
electro-music.com :: View topic - Help with Highly Liquid MIDI THRU Circuit
Just want to share my stripboard layout for the MoroccoDave's MIDI THRU! : r/synthdiy
MIDI Thru Box
CME MIDI Thru5 WC - 1-in-5-out MIDI Interface - High-speed MIDI Thru for transfer of all MIDI data - High-precision 1-to-5 MIDI Splitter : Amazon.ca: Musical Instruments, Stage & Studio
MIDI In/Out/Thru PCB – Electric Druid
Construye tu MIDI Thru Box sin coste y sin soldar | Hispasonic