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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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.
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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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Restomod Car: 2 Brakes and Suspension
Restomod Car moves on to brakes and suspension, with oversized hardware, rust work, and stubborn front-end teardown.
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Easy Naim Hi-Fi power amp upgrades
A straightforward set of component upgrades that can noticeably improve older Naim power amps and similar hi-fi amplifiers.
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Restomod Car: 3 GTE Digital Dash start
A rare Opel GTE digital dash gets powered up, diagnosed, and prepared for a custom restomod integration.
Pedal Progression
A growing series of guitar-pedal builds and experiments, grouped as a progression of different circuits and design choices.
Pedal Progression: 1 Range Master
21 November 2022
In this series I revisit and re-build some of my favorite guitar pedals. Here a treble booster is given some of the best vintage parts possible, protection circuitry, power supply filtering, a negative voltage supply, some indication circuitry, and a, very, shiny…
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Pedal Progression: 2 Suhr Riot
24 November 2025
This another one that was pulled out of the drawers, a "amp in a box", decent rock-box at least 15years ago, still today. Horrid drilling, ok soldering but missing pots, a broken diode and replacing parts, ceramics to start. For this, I…
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Pedal Progression: 3 Zendrive
1 December 2025
This is another pedal from almost two decades ago, a Hermida zen drive, repairing and rebuilding with better parts. A great overdrive more body and fuller than your standard overdrive. "dumble-like"-comes to mind. As with all old leftover pedals it's plagued by…
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