UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - A Simple Programmer for TESLA "MH74S-" bipolar PROMs

SiriusHardware · 20th Nov 2019, 12:06 pm

Sorry, something I didn't quite make clear earlier... There is a binary (code) version of the 'Old' MK14 OS on Martin's site although it is quite hard to find - go to the MK14 blog page where he is discussing the existence of two MK14 OSes, and on which there are links to the two versions of the manual. (Assuming you don't read Czech, Let your browser translate the page).

(Unfortunately our IT at work here is so locked down it won't let me go to the site, so I can't post a direct link for you).

Above the links to the manual PDFs there is a line talking about the code which ends in the words ...'be downloaded'. Those two words are a clickable link to downloadable versions of both OS codes, along with the source used to generate them, I believe, although I have not examined the source.

It's that .obj code on Martin's site (the old OS version) which I have found has one byte different (at 0046) compared to the documentation for both the SCMPKB listing and the original MK14 listing, which both agree that the byte at that location should be 'CA', not '08'.

20th Nov 2019, 12:06 pm	#24
SiriusHardware Dekatron Join Date: Aug 2011 Location: Newcastle, Tyne and Wear, UK. Posts: 11,553	Re: A Simple Programmer for TESLA "MH74S-" bipolar PROMs Sorry, something I didn't quite make clear earlier... There is a binary (code) version of the 'Old' MK14 OS on Martin's site although it is quite hard to find - go to the MK14 blog page where he is discussing the existence of two MK14 OSes, and on which there are links to the two versions of the manual. (Assuming you don't read Czech, Let your browser translate the page). (Unfortunately our IT at work here is so locked down it won't let me go to the site, so I can't post a direct link for you). Above the links to the manual PDFs there is a line talking about the code which ends in the words ...'be downloaded'. Those two words are a clickable link to downloadable versions of both OS codes, along with the source used to generate them, I believe, although I have not examined the source. It's that .obj code on Martin's site (the old OS version) which I have found has one byte different (at 0046) compared to the documentation for both the SCMPKB listing and the original MK14 listing, which both agree that the byte at that location should be 'CA', not '08'.