Acorn-BBC-Micro-Model-B-01-ANB01-3033186

	OVERVIEW
Brand	Acorn	Produced from	1981
Make	BBC Micro	Produced till	1994
Model	B	Units sold	~1.5 Million
	SPECIFICATIONS
	Default	Upgradable?	Max
OS	Acorn Machine Operating System (MOS) 1.2
Processor	MOS Technology 2Mhz 6502A	Via Tube Interface
Memory	32K
Storage	Cassette	Yes	Optional 5.25" FDD
Ports	Serial, Parallel , User, The Tube, FDD
Other	Analogue TV, Composite Video & RGB Out
	Search for it on Ebay
	THIS MACHINE
Serial number	01-ANB01-3033186	MPN/SKU	-
Date acquired	March 2025	Condition	For parts or not working
How acquired	Ebay	Cost	£ 77
OS	Manufacturer standard	Processor	Manufacturer standard
Memory	Manufacturer standard	Storage	Manufacturer standard
Described as:
Hi all. I inherited this BBC Micro from a deceased relative, so apologies if I'm not able to fully describe what I'm seeing here. I'll do my best, please correct me if I've said anything wrong! As far as I can ascertain from the serial number, this is a Model B BBC Micro. When I plugged it in there was a pop and a tiny bit of smoke came out, but it does still switch on. As you can see from the photo, however, whilst it is displaying something it's not displaying everything it should. Although I was also issuing a scart lead, as I don't have a CRT. It might be salvageable, or it might only be useful for spare parts. I also think it might have been modified by the previous owner, for example there is a little button on a wire coming out the back of it, which you can see in the pictures. It's showing its age, but there is no significant visible damage beyond what's already been described. Please check out my other listing for some other BBC Micro hardware/software bits that came with it.
Supplier Pictures
What did it come with:
Nothing just the beeb.
Notes:
At least we know about the PSU being bad, plus a random push button

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Now I have it in my hands

We know its faulty so it's invetigate and repair time.

Next steps:

• Recap the PSU
• Give it a good clean inside and out
• See what else is broken.

This does suggest to me that i should investigate in a good set of diagnostic utilities to help as it' seems to be a recurring pattern.

As I get to each stage I'll create a sperate blog post to document my journey.