Clock Cards??

[Nick Phillips <nwp90@ecs.soton.ac.uk>]

I wonder if any of you can help me.... I have what appears to be
a clock card for the Apple //. I need to know how to use it. Simple,
really (I hope). It has a 16 pin DIL plug which (I guess) appears to
be designed to plug in to the Games I/O connector. The plug has a socket
on top to enable whatever is normally plugged in the socket to be piggy-
backed on top of it. This plug/socket is basically a turn-pin DIL socket
mounted in a PCB instead of a plastic moulding. There are connections on
the PCB to (assuming I plug it in to the game connector) the 5v, annunciator,
0v, and possibly PB2 pins. The PCB has a row of metal connecting strips
to connect it to the main PCB of the card. The metal strips are bent at
right angles such that if the plug is plugged in to the game connector,
the main body of the card will stand vertically. There are, on the main
body of the card, a few components: a rechargeable battery; a NEC clock/
calendar chip; about 4 resistors; a diode or two; a 2-pin molex connector,
like the ones used for speaker connections in the Apple; maybe a capacitor
(I can't remember - I don't have it with me). Unfortunately I can't find
any more data on the chip, and I wouldn't know how to set it up to be
recognised by ProDOS anyway.

So, if any of you recognise what this is, and how it works, and can tell
me how to use it, it'd be greatly appreciated.

Thanks,

Nick

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Nick Phillips        17,Tennyson Avenue, Hitchin, Herts. SG4 0PX - UK
nwp90@ecs.soton.ac.uk
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