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
-
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.
-
Amiga Next-Gen Build: 1 Sam440ep
An Amiga Next-Gen Build centered on the Sam440ep and the strange persistence of modern PowerPC Amiga hardware.
-
Guitar Pedals: 1 Splitter pedal: Two guitar amps at once
A tiny active splitter for running two guitar amps at once, with buffering, ground lift, and phase correction built in.
-
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.
-
Custom DDC: 2 Bluetooth & auto switching
Custom DDC expands with Bluetooth and automatic switching, aiming for cleaner hi-fi streaming without manual input juggling.
Featured Builds
A curated set of highlighted builds and project chains that are especially good entry points into the site.
Series pages below act as gateways into the live project chains.
Dumble Overdrive Special
Build notes and progress entries around a Dumble Overdrive Special-inspired amplifier project.
3 live post(s) in this series.
Open this series
High Gain SLO/Ubershall
A high-gain amplifier series built around SLO/Ubershall-inspired ideas and design goals.
1 live post(s) in this series.
Open this series
Pedal Progression
A growing series of guitar-pedal builds and experiments, grouped as a progression of different circuits and design choices.
3 live post(s) in this series.
Open this series
Homelab
A running series covering firewall experiments, virtualization hardware, mini-servers, and the evolution toward a quieter, apartment-friendly homelab setup.
4 live post(s) in this series.
Open this series
Custom DDC (Hi-Fi)
A hi-fi oriented digital project focused on a custom digital-to-digital converter and its evolving feature set.
2 live post(s) in this series.
Open this series
Amiga Next-Gen Build
A project chain focused on modern Amiga-style hardware, repair work, and getting the platform into usable shape.
2 live post(s) in this series.
Open this series