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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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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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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Dumble Overdrive Special: 1 Head & Circuit
An introduction to the Dumble Overdrive Special build, why the original amplifiers are legendary, and what makes the project worth chasing.
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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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Pedal Progression: 3 Zendrive
Pedal Progression moves on to a Hermida Zendrive rebuild, fixing old enclosure mistakes while keeping the fuller overdrive voice intact.
Amiga Next-Gen Build
A project chain focused on modern Amiga-style hardware, repair work, and getting the platform into usable shape.
Amiga next-gen build: 1 Sam440ep
6 May 2025
Amiga is a name of a computer and Operating System of the 80's and early 90's before a slow self-destruction in various ways, however it never really ever died. This build use a much more recent custom ITX board and some nice…
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Amiga next-gen build: 2 motherboard repair & power supply
10 January 2026
I'm no stranger to the capacitor plague and effects of them failing. Wasn't planning of repair/change of power supply a second time on this machine however. Time to replace parts on the actual motherboard. Seems the caps and/or regulator on this motherboard…
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