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
-
Saving Monitors: Leaky capacitors
A quick repair example showing how leaking capacitors can bring old monitors back to life for very little cost.
-
Custom DDC: 2 Bluetooth & auto switching
Custom DDC expands with Bluetooth and automatic switching, aiming for cleaner hi-fi streaming without manual input juggling.
-
Restomod Car: 3 GTE Digital Dash start
A rare Opel GTE digital dash gets powered up, diagnosed, and prepared for a custom restomod integration.
-
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.
-
Pedal Progression: 2 Suhr Riot
Pedal Progression continues with a Suhr Riot rebuild: rough old work, missing parts, and a plan to turn it into something better.
TrainWreck Rockette: 2 Headshell
A good find: this old ’70s VOX transistor amp, from my old music teacher no less, seems like the perfect candidate for a Trainwreck build (a VOX AC30 Top Boost with EF86). Non-functioning and quite dusty, the first steps are making room and starting the restoration.
First, removing the internals, but then housing a hot tube amp in such close quarters is not something the box was designed for. So second, I paint it in high temperature automotive paint and then cover it in aluminium foil to reflect any heat.
Then to bend the chassis, I use thick aluminium into a U, and cut down the original back to make up a top cover, but ventilation is more than necessary, so a nice stretch metal mesh for the back and a slim 120 mm fan in front where originally there was a speaker. The power for this fan is run through a capacitor and diode from the amps heater supply, plenty to run this as well, but wanting to fine tune it I first go through a little PCB allowing me to vary voltage anywhere from input voltage to 0V.
Still some way to go, but that’s the casing basically done, next last bits need to go on the actual circuit in the chassis and I have transformers to order, then it is done.
TrainWreck Rockette: 1 Redesigned
Continue in this series
More in Guitar Amplifiers & Hi-Fi