This is a Buy-It-Now sale for a replacement Integrated Circuit, for the Acorn BBC Master 128.

The BIN sale is for 1pcs Hitachi HD146818P or Motorola MC146818P. These are the CMOS RAM ICs that keep the configuration data in a Master 128, and also serve as the Real Time Clock. A faulty one can manifest itself as the machine booting to "TERMINAL=", or failing to keep the correct time once set.

Ideal to replace a faulty one in your machine, or as a spare. Tested solder pull used, with good length legs.

The item photo is representative of the item you will receive, and may be different date codes. If you'd prefer a specific brand, please message BEFORE doing the BIN to check I have them in stock. If no brand is specified, I will supply at random.

Due to 2nd class mail becoming more and more unreliable, all items are now being migrated to Tracked 48 postage. T48 and T24 postage on small items are usually free for any additional items of the same type. I am unable to get the system to automate combined postage for different items, however if you make the purchase for multiple different items using the basket method, I will combine them into one parcel where possible, and refund any postage excess at the time of shipping.

** UK POSTAGE BY ROYAL MAIL TRACKED 48 **

** Worldwide shipping by the eBay Global Shipping Program **
** Please check my feedback! **

We also supply GOTEK USB drives for the BBC Micro, as well as Raspberry Pi multi-core Second processors in internal and external versions.
As well as 1770 Disk Upgrade kits, 4 way switchable OSs for the Master 128 and 2 way for the B+, we can supply other refurbished BBC Model Bs and Master 128s to your specification.
Please check my other items for sale, or if they've sold out on my listings, please contact me for details.