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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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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Homelab: 1 25 Year old computer as a firewall: 60Mbps throughput
A test of whether a 25-year-old computer can still serve as a practical pfSense firewall at home, and what performance it can deliver.
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Guitar Rebuild: 1 Onboard preamps & hardware
A Japanese 1982 Matsumoku guitar becomes the basis for a rebuild focused on onboard preamps, hardware, and a heavier final voice.
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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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Guitar Pedals: 2 Splitter/Buffer
A compact splitter/buffer build for running two guitar heads at once, with practical fixes to the original circuit values.
Dumble Overdrive Special: 2 Headshell
Head — a strange word for this, but it is what it is called — the amplifier itself, presumably sitting on the ‘body’ represented by the stacks of speaker cabs. Using a schematic from the ampgarage.com forum as a base I set out to do some good and honest woodworking, always relaxing. First, getting small pieces of 18mm plywood is no joke; I ended up with an incredibly massive piece for the same cost as if I had shopped where smaller pieces are sold. So I guess I am building some more speaker cabinets from that next.
A quick box later, lots of sanding necessary, I noticed the plywood carried several empty pockets revealed when cut. As a result mixing up sawdust and woodglue creates a good putty of sorts to fill those gaps.
As most chassis available vary slightly in size its importent to tweak the measures to your specific one. Also keeping the ratios is important if you want the look to be the same of the original fumbles. Plenty of builds out there have off putting ratios that immediately signals a poor job.S
Some photos of the woodworking almost finished.
Happily the fit is good.
And so is the final case, glad of how it turned out. Although I’m sure I’ll revisit some minor details in the future it certainly is better than those custom orders availible on the market, with better hardware and hopefully durability.
Dumble Overdrive Special: 1 Head & circuit
Dumble Overdrive Special: 3 Mods
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