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Skywave Germanium Drive

Based On
Hudson Broadcast
Effect Type
Germanium fuzz/overdrive
Build Difficulty
Project Summary
A hybrid silicon/germanium boost & drive pedal with a transformer-coupled output, with tones spanning the decades from vintage to modern.
Skywave Germanium Drive printed circuit board

Printed Circuit Board

What's included?
PCB only. Build instructions and parts list can be viewed or downloaded from this page.


In stock

Complete Kit

Not yet available.
Kits are developed based on interest, so if you’d like to see one for this project, let us know.
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Project overview

The Skywave Germanium Drive is an adaptation of the Hudson Electronics Broadcast, a germanium preamp/overdrive pedal based on vintage broadcast consoles from the 1960s. It uses a hybrid of silicon and germanium transistors in class-A configuration, plus a transformer at the output that saturates on higher drive levels.

The Broadcast was originally released in 2015, and has since had a few new variants including one that runs on 24V and another with a second footswitchable gain mode with its own level control. (There was also a limited-run version that combined both of these features into one.)

The Skywave is primarily based on the original Broadcast, but it adds a voltage-tripler circuit to allow selectable 18V or 24V power from a standard 9V supply. It also incorporates a 3-way gain switch, adding an extra position adapted from the 24V version of the Broadcast.