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

SiriusHardware · 14th Jun 2019, 8:59 pm

I prefer to think of this as an 'ultimate' MK14, with all the refinements that the issue VI would have had, had there ever been one.

You've obviously gone away from the possibility of using PLDs or GALs or PROMs as custom address decoders, a decision which I can safely applaud since I'm not the one who actually has to get all the necessary standard logic onto a PCB.

Ultimately, that decision will make it easier for anyone else to rock up and populate one of your replicas, with only the PROMs then still being really difficult and expensive to obtain - hopefully the 6xxx RAM alternatives are still available at a reasonable price.

14th Jun 2019, 8:59 pm	#187
SiriusHardware Dekatron Join Date: Aug 2011 Location: Newcastle, Tyne and Wear, UK. Posts: 11,548	Re: MK14 schematic revisions I prefer to think of this as an 'ultimate' MK14, with all the refinements that the issue VI would have had, had there ever been one. You've obviously gone away from the possibility of using PLDs or GALs or PROMs as custom address decoders, a decision which I can safely applaud since I'm not the one who actually has to get all the necessary standard logic onto a PCB. Ultimately, that decision will make it easier for anyone else to rock up and populate one of your replicas, with only the PROMs then still being really difficult and expensive to obtain - hopefully the 6xxx RAM alternatives are still available at a reasonable price.