Been enjoying playing with the HUB75 type matrixes, so when these appeared in a "free take it away" pile, it became necessary to use them as housings for the project(s). Rebuilt the umbilical to the 'wave vessel' box using an old SCSI cable (hoarder? you be the judge) and kept various LEDs and incandescent lamps from the original circuitry for use in the new display. Includes waveform synthesis and 1024 bin FFT audio analysis and display, with an overwhelming variety of options.
They did; I was loath to replace them but so it goes. I saved the CRTs and power supplies- they're a 24-36VDC input