Science of Cambridge MK14 reproduction

[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

[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

[Stew]

Hi Phil.

Nice job. Love the display.
Where did you get the programmed PROMs from?

Stew.

[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

[Stew]

Thanks Phil. Great stuff.

[Stew]

Anyone ever made a replica of Ian Williamsons original prototype of the MK14?
I always like to see prototypes of anything.

Stew.

[Phil_G]

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

[Stew]

Thanks Phil, I appreciate you doing that. My appetite was whetted after watching this fascinating video.
https://youtu.be/awlqzippsSc?si=JtPl7aIMLtHDIHoj

[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

[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.