Published 1973 – 1980 | Version v1
Diagram Open

MMS Maintenance Handbook drawings


Modular Memory System with 80, 120, 240, 360, 480 channels. 
MMS was the first mass produced memory control and jumped two hurdles in a single stride: it took full advantage of low-priced integrated circuit technology, and dispensed fader or switch per channel in favour of a calculator style keypad and wheel, to control up to 480 channels.
The system consisted of self-contained function modules (which could be chosen by the purchaser) linked by a common signal bus, used singly or in multiples for facilties required. 
Channel control was by a dedicated numerical keyboard including (the now common) THRU, @ and the first use of a digital fader wheel. The Mimic module gave above-zero indication for each multiple of 120 channels. It used Ferrite Core memory.
First used in 1973 at the Birmingham Hippodrome, and the last was in 1979.
A total of 208 MMS desks were sold. 



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