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<
Categories
- DIY (30)
- DIY Audio (18)
- DIY Computation (8)
- DIY Misc (5)
Random Posts
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PC Water Cooling: Maintenance
PC water cooling can pay off in noise and performance, but this maintenance pass shows what growth and clogging eventually look like.
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Silence Your Guitar Amp: Variable Voltage Regulator
A variable voltage regulator lets a loud tube guitar amp keep more of its core feel while behaving better at home volumes.
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Headphone Repair
A high-end Sony Bluetooth headset gets new soft parts, glue where needed, and a more thorough repair than simple replacement alone.
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High Gain SLO/Ubershall: 1 Intro
An overview of the main high-gain amplifier platform: a heavily modified SLO/Ubershall-inspired build with a long list of switchable ideas.
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Homelab: 3 Turning laptops into mini-servers
An argument for turning old laptops into mini-servers instead of e-waste, with practical homelab examples.
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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