The Tumnus is Wampler's take on the most talked-about overdrive and boost circuit there is, built into a mini enclosure with three controls: Level, Gain and Treble. Wampler's approach was to gather as many of the originals as they could find, work out what they had in common, and build every Tumnus to that same consistent target.
It is a high-headroom drive, which is why it does so many jobs on a board. Use it ahead of another drive to thicken it up, on its own as an overdrive, or at the end of the chain as a dirty boost for solos. The bypass is buffered, it draws 20mA at 9V, and it runs on a DC supply only. Built in the USA.
For a full 3-band EQ, a Normal/Hot switch and a choice of buffered or true bypass, look at the Tumnus Deluxe. The Gearbox puts a tweaked Tumnus on one channel with a modified Pinnacle on the other.
SPECIFICATIONS
CONTROLS
Level, Gain, Treble controls
FEATURES
Famous OD/Boost voicing
Bypass: 3PDT Buffered Bypass
POWER
Power draw: 20mA at 9v
9v power jack, DC supply only, no battery connection within
DIMENSIONS
1.5" x 3.5" x 1.5" (38.1mm x 88.9mm x 38.1mm), height excludes knobs and switches



