Sep 12, 2024
THURBLY - harmonic multiplier
"The Harmonic Multiplier is an effect unit designed specifically for use with a guitar, and although it can produce spectacular results with any electric instrument, these instructions are intended only to cover the guitar.
The purpose of the unit is to increase the harmonic content of the signal from the guitar. ..." (manual, effectsdatabase.com)
cred: reverb.com/XTG Shop