The Moogseum has announced a limited-time Minimoog Prototype Exhibit, November 14th – November 16th, 2025.
The event marks the 55th anniversary of the first Minimoog being shipped on November 19, 1970.
The Minimoog began in 1969 as the “Min A”, a five-module unit created by R.A. Moog Co. engineer, Bill Hemsath to provide easy demonstrations for the larger famed Moog modular systems.
The portability of the unit generated such appeal that Hemsath, along with fellow engineers Jim Scott and Chad Hunt, created the Model B prototype, which used circuit boards from the modular, housed under an integrated front panel designed by Hemsath.
The Model C prototype was the first prototype to replace existing circuits from the modulars with new circuit designs, which were simplified and adapted for the portable system. Its panel design shows significant evidence of Bob Moog’s involvement as he added the all-important rocker switches, among other aspects, as well as specifying the cabinet with its signature fold-down panel.
The Model D prototype had a few cosmetic tweaks to the front panel design to ready it for production, and design progressed to printed circuit boards with copper traces that could be mass produced. The A440 tuning reference replaced the momentary pushbutton with a rocker switch. Wood trim was added to the top of the control panel, and most importantly, the left hand controller sliders were replaced with wheels per Bob’s instruction, which allowed for more human nuance.
Members of the MMT staff will be on hand, to answer questions about the prototypes.
Tickets are available now at $16 per person. The Moogseum is extending its hours to accommodate the interest in the exhibit, and will be open from 10-6 all three days. Advance ticket reservations are strongly encouraged.
