28 Aug
2002
28 Aug
'02
1:04 p.m.
I have a Processor Tech. 16KRA (16K RAM) board. There
are three
components missing on the board.
U40 14 pin DIP
74LS136
U42 16 pin DIP
74LS157
U58 16 pin DIP
74LS157
Anyone know what they are? There are also 2 8-pin dip
switches that
control addressing and who knows what else. Anyone have the switch
description?
Is this in the upper left corner of the board? If so it
controls the page and address line assignments for the address
selection switches.
All of this info came out of the '16KRA Users Manual', forth
printing, April 1978.
Jeff
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