UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post

circuitryboy · 1st Nov 2019, 5:12 am

Thanks.
The other board is a piggy-back which makes things really useful.
It latches the top four addresses and flags, plus tristate buffers on address and data.
(Pic not good - my regulation 200K JPEG got strangled down to 55!)
The red MK14 socket is now 42-way (yes, is the answer to everything). The p-b detects non-Page0 address; a signal back to main board forces MK14 to Page0 only.
And the 40-way connector let's you bus off to the outside world.

1st Nov 2019, 5:12 am	#4
circuitryboy Pentode Join Date: Jun 2012 Location: Bristol, UK. Posts: 115	Re: A More Useful MK14 Thanks. The other board is a piggy-back which makes things really useful. It latches the top four addresses and flags, plus tristate buffers on address and data. (Pic not good - my regulation 200K JPEG got strangled down to 55!) The red MK14 socket is now 42-way (yes, is the answer to everything). The p-b detects non-Page0 address; a signal back to main board forces MK14 to Page0 only. And the 40-way connector let's you bus off to the outside world.