Re: Equipment Identification Help.
This is, as it says on the serial plate, a Rank Bush Murphy MR773 Mk 4 monochrome 625 line tv picture monitor from I would say, at a guess, the late 60s or early 70s
This monitor accepted two composite video inputs (switchable) and a single (optional) external sync input
All inputs were ‘loop through’ allowing signals to be extended to other equipment if required (or terminated in 75ohms if not)
This was the standard configuration for analogue video
Hope that this clarifies a little bit - sorry but further info has not survived in my ‘archiveĀ“
Rgds John
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