Monthly Archives: February 2020
Earth Sound Research Graphic Fuzz (1976)
Boss SD1 Super Overdrive Modification
Free Pedal Day! Finally got it… was actually newer Boss SD1 Super Overdrive…
Germanium transistors : Black Glass models
They were thus nicknamed in allusion of their very particular black glass case. Glass technology had been selected because at that time plastics were still unable to ensure a perfect seal between case and terminals. They have been the first transistors … Continue reading
Dallas Rangemaster Treble Booster Analysis
The Dallas Rangemaster Treble Booster is a booster guitar pedal that especially emphasizes the upper mid and treble frequencies (coloring the signal). It was designed in London (UK) by Dallas Musical Ltd in 1965. At that time, the British tube amplifiers such … Continue reading
Mullard Semiconductors
Probably the largest manufacturer of early semiconductors in Europe was Philips of the Netherlands. As well as their own laboratory and manufacturing facilities in Eindhoven, Philips had three overseas subsidiaries: Mullard Ltd. in England. Valvo Gmbh. in Germany. La Radiotechnique … Continue reading
the AC128 transistor
31 January 2019 / by Jacques Charbit INTRODUCTION: The nanotube Silicium might be an endangered species. Progress around carbon electronics (nanotube and tripods) and nanotech are going so fast that a well-known Japanese TV brand is issuing next year a … Continue reading
“5F” – The FAQ For Fuzz Face Fanatics
By Steve Daniels, Small Bear Electronics LLC © 2018 By Small Bear Electronics LLC This article answers some common questions about the transistors used in cloning and modifying the Fuzz Face and similar pedals. It is meant for beginners who … Continue reading
Ultra Simple 9v VCF
This VCF (Voltage Controlled Filter) is made from a tl071 op amp chip, 6 resistors, 3 capacitors, 2 pots and a diode. The schematic is very simple, and takes about an hour to build (less if you’re good at this … Continue reading