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Science of Cambridge MK14 reproduction
Posted: 30 Sep 2023, 15:20
by Phil_G
Anyone remember this advert from 1977?
I recently built three SC/MP based machines including this SoC MK14 repro.
Many of the chips have been out of production for several decades, locating the original components is all parts of the fun:
More on
http://philg.uk
Re: Science of Cambridge MK14 reproduction
Posted: 30 Sep 2023, 17:03
by Jim
Hi Phil
Sorry I don't remember the SoC but the advert price is interesting, it's about the same price as a Raspberry Pi is today, something along with RC gear that was more expensive back in the day.
The other Phil
Re: Science of Cambridge MK14 reproduction
Posted: 29 Nov 2023, 19:08
by Stew
Hi Phil.
Nice job. Love the display.
Where did you get the programmed PROMs from?
Stew.
Re: Science of Cambridge MK14 reproduction
Posted: 03 Dec 2023, 21:34
by Phil_G
From other SC/MP enthusiasts Stew. Search "SCIOS Proms" on eBay, Chris Oddie does them, Benny (Audiokit) and others. Version 3 is the most recent.
However, there's an alternative - a carrier board that is electronically identical but uses 'current' chips. A further benefit is that it provides full memory expansion - 1.5k Vs 256 bytes!
The board is a plug-in so if ever you find genuine chips, it's a plug-&-play swap.
Check my SC/MP page -
Https://philg.uk
Cheers
Phil
Re: Science of Cambridge MK14 reproduction
Posted: 05 Dec 2023, 11:44
by Stew
Thanks Phil. Great stuff.
Re: Science of Cambridge MK14 reproduction
Posted: 11 Dec 2024, 19:28
by Stew
Anyone ever made a replica of Ian Williamsons original prototype of the MK14?
I always like to see prototypes of anything.
Stew.
Re: Science of Cambridge MK14 reproduction
Posted: 12 Dec 2024, 09:51
by Phil_G
Stew wrote: 11 Dec 2024, 19:28
Anyone ever made a replica of Ian Williamsons original prototype of the MK14?
I always like to see prototypes of anything.
Stew.
I've asked on VRRRF Stew, they would know!
https://www.vintage-radio.net/forum/sho ... p?t=216283
Re: Science of Cambridge MK14 reproduction
Posted: 12 Dec 2024, 20:37
by Stew
Thanks Phil, I appreciate you doing that. My appetite was whetted after watching this fascinating video.
https://youtu.be/awlqzippsSc?si=JtPl7aIMLtHDIHoj
Re: Science of Cambridge MK14 reproduction
Posted: 15 Dec 2024, 12:14
by Phil_G
Its prompted a few comments on VRRRF Stew, I dont know if you're following...
https://www.vintage-radio.net/forum/sho ... p?t=216283
Re: Science of Cambridge MK14 reproduction
Posted: 16 Dec 2024, 14:01
by Stew
Hi Phil, not looked in on VRRRF for a few days. Just had a quick look during my lunch break, before I go out for my daily 'sanity check' winter walk around the staff car park...
Yes, there's quite a few replies now isn't there, and very interesting reading it is too.
Good stuff.
Cheers
Stew.