Author: Johannes Johansson
Dumble Overdrive Special
The Dumble amplifiers are clearly the highest priced guitar amplifiers ever to exist, and with good, or at least understandable, reason. These amplifiers fetch more than 50.000$/€ a piece, a staggering sum. Why this is understandable can be gleaned by […]
Saving monitors: leaky capacitors
A common issue with electronics are when small insignificant components fail. Fixes then usually only depend on 1) Knowledge/problem solving and 2) 1-2 $/€/£ in replacements. In this case a very common issue, leaky electrolytic capacitors. While most parts […]
Tiny 24Core Virtualization/Computation server from hacked hardware!
For some time a good way to get cheap and powerful computers, outside of cutting edge gaming or single-core heft, have been to get used server CPU’s. There is even a interesting hardware hacking community around this practice coming out […]
25 Year old computer as a firewall: 60Mbps throughput!
If you have spend some time around a computer interested individual you may at one time or another have come across the suggestion that a good use for an old computer is as a firewall and router around your home. […]
Silence your Guitar Amp – Variable Voltage Regulator
Guitarists often find themselves in love with their amps, playing an electric guitar a lot of the time what’s making up your sound is found far down the chain from your actual strings. And here comes the problem, the best […]
Easy Naim Hifi poweramp upgrades
Why these mods work is quite simple, even very expensive hifi-gear tend to use cheap sonically bad components where size is an issue. With some looser considerations there, however, really is room to hook up, for instance, capacitors that better […]
Dumble Overdrive Special – Headshell
Head, strange word for this but is what it’s called, a head being the amplifier, 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 […]