Author: Craig Andrews

Posted in Memory Expansion

Memory Expansion Board Now Available

The four channel memory expansion board is now available for download.  It is also available on Tindie,…

Posted in Prototype

I/O Port Prototyping Board & Build Files are Available

The Digital I/O Port prototyping boards have arrived an they look good so I am releasing the…

Posted in Prototype Serial - Parallel I/O

I/O Port ProtoBoard

The SBC-85 backplane prototyping board has been a hit and, at least from what moves through here,…

Posted in Serial - Parallel I/O

Up Next? Serial – Parallel I/O Card

With every job at the PCB fab I like to include a prototype of a new design….

Posted in 8085 SBC

SBC-85 CPU v2.0 in Prototype

UPDATE: The SBC-85 CPU v2 is now available. Those that do not have 21V programmers for the…

Posted in Magnetic Bubble Memory

Bubble Memory Support Boards

During assembly or development of a bubble memory system, it is safer and more convenient to use…

Posted in Magnetic Bubble Memory

7110A 1Mbit Magnetic Bubble Board Available on Tindie

The 7110A 1Mbit bubble board is on Tindie for purchase. This board will also work with the…

Posted in Magnetic Bubble Memory

Buying Bubbles – My Experience So Far

Curious about the condition of bubbles that I have seen available for sale, I decided to take…

Posted in Uncategorized

Want to Order Direct from PCB House? I will Walk You Through or Create the Order from JLCPCB for You

I am getting a number of purchases from overseas buyers that want in on the SBC-85 system,…

Posted in Magnetic Bubble Memory Memory Expansion

My Bubble’s Back and There’s Gonna Be Some Trouble

Hey-laaaaa. Day-laaaaaa. My bubble’s back A quick update on the 7110A bubble board that arrived from the…