Germanium Boost (Black)
Benson AmpsProduct Description
In the creation of the temperature-controlled fuzz, we explored some unconventional methods. One initial attempt involved a voltage-controlled error correction circuit to bias a single germanium transistor. However, this approach didn't suit the fuzz, which is humorously sensitive to the gain characteristics of transistors.
We did discover a perfect application for it, though.
It turns out this circuit is IDEAL for crafting a germanium clean boost that, much like our fuzz, is resistant to component drift, leakage, and temperature fluctuations—actually even more so. Additionally, we addressed a few other challenges that were hindering the germanium transistor from functioning as a convincing linear boost. We enhanced the input headroom (since a typical guitar signal can cause unwanted distortion in a germanium transistor without adjustments) and raised the input impedance (as a BJT transistor can often thin out bass frequencies and interact poorly with incoming signals).
The outcome is a germanium clean boost capable of utilizing a germanium transistor WITHOUT the unusual artifacts that were previously accepted as standard—such as temperature sensitivity, drift, and suboptimal input impedance and headroom.
Once the boost is powered on, it takes about ten seconds for the error correction circuit to properly bias the germanium transistor. After that, things get intriguing. We can hear how engaging the boost makes guitar signals sound more musical, even when set at the same volume as the bypassed tone. Notes gain a simultaneously smoother and more detailed quality, resembling a compressor but with a different character. Some who have tried it noted that it seems to downplay the undesirable aspects of a signal while highlighting the positive ones. It's fantastic for bass, enhances the natural sound of acoustic guitar pickups, and of course, it can drive your amp into a frenzy.
Technical Specifications
| Current | 50mA |
| Voltage | 9V DC, center negative |
| Circuit Type | analog |









