Master MOS3.5 ROM

wanted ads for hardware, software + literature (NOT for tape/disc image requests)
Forum rules
You're welcome to trade Acorn-related stuff with other forum members here - the rule of thumb to follow when trading, is that items or services offered should be of interest to our Acorn community. Do NOT use multiple accounts - please trade with your regular (and only) forum account. If you're giving items away, please make it clear if you would be unhappy with the recipient selling on some or all of the items. Similarly, please ensure that the giver is comfortable with you re-selling items you have accepted as a gift. We cannot be held responsible for what happens in these trading forums or for deals done via PM. This must be done at your own risk. If you aren't comfortable with this - make the trade via an alternative site which can apply safeguards of their own. Be sensible - if someone approaches you to trade via PM who is not posting in the public forums, this may be a sign that they are not entirely what they seem. Please report it to the moderators if you receive an unsolicited message from anyone suspicious, so that it can be investigated and hopefully stop anyone being taken advantage of.
User avatar
Posts: 170
Joined: Mon May 22, 2017 11:20 am
Location: Bradford

Master MOS3.5 ROM

Postby marcusjambler » Mon Jan 08, 2018 10:55 pm

Hi All

I'm in need of a working vanilla MOS3.5 ROM.
Happy to pay the going rate.


User avatar
Posts: 5800
Joined: Wed Feb 02, 2005 3:13 pm
Location: Shadow in a Valley of Scotland

Re: Master MOS3.5 ROM

Postby CMcDougall » Sun Feb 11, 2018 9:40 am

s-l400-4.jpeg (26.39 KiB) Viewed 20 times

^ this is 3.20 sold by MarkH /RetroClinic
for £2.49, wonder if he has 3.50s too..

anyone got the numbers on it /pic, so not 2201,239-01

User avatar
Posts: 2506
Joined: Sun Aug 02, 2009 4:59 pm
Location: Lost in the BeebVault!

Re: Master MOS3.5 ROM

Postby BeebMaster » Sun Feb 11, 2018 3:12 pm

Should be stamped MOS 3.50 on the chip if it's a real one:


Who is online

Users browsing this forum: Baidu [Spider] and 2 guests