Grundy NewBrain AD system with 'oil rig' and disk expansion.
This is a full Grundy Newbrain system with the 'oil rig' expansion unit, 'foot breaker' PSU, dual floppies, memory expansion and disk controller. Generously donated by ex-Grundy employee Gerald McMullen, who says:
"My precious. #600144 NewBrain with socketed ROMS, 64kb expansion module and disc controller in a modified tower to take twin 3.5" disc drives and a modified, by John Kelly, foot breaker power supply that powered the lot. The monitor once sat on the system in Basil Smith's office. I used this for years to run NBUG and market and sell hardware and software for the deceased system. "
Other info from Gerald:
"In 1982 there were plans for modular cases to house the modules and expansion boards. This wasn't happening so the tower shown was made as a stop gap. As even these didn't appear in numbers loans of machines to software companies where supplied with an 'oil rig' tower to support the monitor with floppy disc controller and 96K expansion module in slim brown cases held together by locking keys. The brick at the back was the multiple power supply for four modules (the computer/keyboard module being one of them). This was so over engineered that it would also run a pair of 3.5" floppy drives (in house custom alteration)."
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