R2R Electric Si Distorter Fuzz TFK #69 (2024)

A truly excellent piece of gear!
(R2R stuff is beautifully built using NOS components (see pix)...and it really shows!)

A great pedal indeed, but it's not currently on my board and I could really used the cash for other gear.
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From the R2R Electric product page:
The Si Distorter is a two transistor fuzz, featuring my favorite aspects of both the 1970's silicon Fuzz Face circuit and the 1970's silicon Schaller Fuzz. These two vintage fuzzes were similar in many ways, yet had very distinct tonal differences. The Si Distorter blends them together into a unique fuzz that sounds like both and neither at the same time.
These fuzzes are extremely reactive to changes of your guitar's volume control. You can get tones ranging from crystal clean, to bright overdrive and all the way to massive fuzz sounds all from rolling back your guitar volume.

Each Si Distorter features:​Pair of hand selected vintage silicon transistors
*1960's/1970's Siemens BC109B - while supplies last
Vintage CTS, Stackpole or Centralab potentiometers
Philips, Siemens, or other vintage capacitors
NOS 1960's Piher, Allen-Bradley & Philips resistors
LED on/off indicator
Vintage syle replica circuit board
Fuzz Face style replica knobs

*Due to the design of this vintage fuzz circuit, these pedals work best placed first in your signal chain. These units do not work well with buffers or buffered bypass pedals going into the input. This will cause the effect to sound thin with a significant volume drop*
**These effects can be powered by 9v battery (included) or negative center 9v dc power*
***To preserve battery life, please unplug the input jack after use***