Re: Black Star Apollo 10
Apollo counter.
The nearest I have is the Meteor counter. Uses the usual 7216 I.C. with a Plessey/GEC ECL divider for the higher frequency models.
This may give you a useful lead to the circuit. Your model may just have more elaborate switching.
So I attach the circuit. Let us know how well it compares with your actual machine.
wme_bill
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