Here you’ll find a collection of things that I do, make, say, and think. It collects projects published across my sites, including custom-built guitar and hi-fi amplifiers and effects, custom PC servers, and rescued or upcycled hardware. Simply a central place to collect what I’m doing with some of my creative energy at any given time.
If you are looking for my professional information go to >JohannesJohansson.com<
- DIY
- Uncategorized
- DIY! In audio electronics, guitars, computers and misc
- Featured Builds
- Guitar Amplifiers & Hi-Fi
- Guitar & Pedals
- Homelab & Compute
- Workshop / Misc
- Homelab
- Amiga Next-Gen Build
- Pedal Progression
- Guitar Rebuild
- Dumble Overdrive Special
- TrainWreck Rockette
- High Gain SLO/Ubershall
- Custom DDC (Hi-Fi)
- Restomod Car
Categories
- DIY (30)
- DIY Audio (18)
- DIY Computation (8)
- DIY Misc (5)
Random Posts
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Homelab: 2 Tiny 24 Core virtualization Computation with hacked hardware
A compact homelab build using repurposed server CPUs and hacked hardware to create a tiny 24-core virtualization machine.
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Guitar Pedals: 3 Fixing a Temu digital delay
A cheap Temu digital delay arrived broken, so this post follows the attempt to diagnose and fix it anyway.
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Restomod Car: 1 Engine
The Restomod Car series starts with the engine and the realities of reviving a long-stored 1996 Opel Astra project.
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Amiga Next-Gen Build: 1 Sam440ep
An Amiga Next-Gen Build centered on the Sam440ep and the strange persistence of modern PowerPC Amiga hardware.
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Pedal Progression: 1 Range Master
Pedal Progression starts with a rebuilt Range Master treble booster using vintage parts, protection circuitry, and a polished new housing.
Guitar Pedals
A series for standalone guitar-pedal projects that sit outside the Pedal Progression chain.
Guitar Pedals: 1 Splitter pedal: Two guitar amps at once
13 March 2025
Splitting the output of your guitar/pedalboard to two separate Guitar Amps is one of the most powerful way in shaping your tone and 'broaden' the sound, but to do so you need some tricks. In this post I build a tiny active…
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Guitar Pedals: 2 Splitter/Buffer
27 February 2026
A great little utility box that on its own can have a massive influence on sound, since it allows me playing through two separate guitar heads at the same time! I also challenged myself building it into the absolute smallest package possible,…
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Guitar Pedals: 3 Fixing a Temu digital delay
22 April 2026
A Temu guitar pedal… Well 5 euro (or usd) is not a lot for a pedal that is for sure, so I tried this out, yet arrived broken. So got a refund but lets try and fix it anyway I thought. Interesting…
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