Able Electronics Bassmaker - Rare UK auto-bass pedal

Ultra rare UK pedal that generates bass notes from any chords you play. Terribly cool and amazing, works great. Comes with original demonstration cassette showcasing its abilities.

From a website dedicated to rare pedals:

The bassmaker acts as an intelligent octaver. A filtering process allows the octaver section to kick in on the lowest notes. However, how it does this I'm not so sure. There is an op-amp on the board, but I believe the easiest way to filter the bass-end is to couple a resistor and potentiometer (not unlike the tone control in an electric guitar). As standard analog octavers process monophonically ( e.g., such as the Boss OC-2/OC-3), the filtered signal cuts out some of the frequencies that confuse the pedal when playing polyphonically. The bassmaker does get confused but it is just hidden better; this adds to my hunch that the filtering process is achieved via the potentiometer itself (the other pot serves as gain of the octave section only) and not via the circuitry.

Strange and rare pedal in both form and function, unusual plastic enclosure with odd foot switches.