via this auction
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First pics of one on the site.
You can find demos in previous posts here.
"Store your best sonic memories on the EASEL Program Manager Card! The PMC takes full advantage of the program interface, storing up to 48 Easel presets and interfacing with your computer with a class-compliant MIDI connection. The EASEL Program Manager App for Mac and Windows gives you the power to manage banks, create programs, and import and export your presets for sharing.
The program interface’s edge card connector was originally designed to let artists create presets by wiring resistors to a circuit board to fix the positions of the sliders and banana connections. Each preset was its own card. Simply swapping cards in the program interface completely changed the sound. This was valuable, if not outright necessary, to musicians who needed to easily recreate patches for performance and create repertoire. The 2013 “iProgram Card” created a vital link between computer and Easel. Now, in 2022, Buchla USA has refreshed and simplified the design, giving it more memory, embed-ability, and making it easier to use.
While you can still solder up some sounds for all generations of the Easel, the new Program Manager Card provides microcontroller precision and computer convenience. Serving as the digital bridge between your computer’s USB port and the 28 pins of the Program Interface, the PMC gives you instant recall and easy access to 48 unique programs that control almost every parameter and patchpoint on the Easel’s front panel. Repeatability and repertoire are made instantly available."
