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The Control Unis is No 9 July 1959, the front panel was created on the computer and printed in negative
(ie black lines on a white background) and 'reversed' by the local copy shop on their digital copier and then laminated.
A list of all the playmaster and a few other articles from Radio and Hobbies


This is the Playmaster described in 'A typical complete playmaster system' December 1959
It is an Ultra Linear 10W + 10W circuit with silicone rectifiers



ANYONE GOT ANY IDEAS FOR PRINTING ON TO AN ALLUMINUM PANEL?
there use to be a product called 'Scotchcal' apparently now longer available
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