Available as an assembled Module and as a DIY project.
This Module is currently available.
Clone of Buchla 171 instrument preamplifier
La Sesenta y Siete 171 Dual Instrument Pre-amplifier consists of two preamplifiers for electric guitars, contact microphones, and other low-level signal sources. Input impedances are 200 k ohms; input connectors are standard phone.
These merchants probably sell this module. Huh?