Integra B for the BBC Micro

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Examination of the Integra B expansion board for the BBC Computer Model B. Originally made by Computech but recently remade and improved by Ken Lowe.
Covers sideways RAM/ROM, the startup configuration (*STATUS and *CONFIGURE) the Real Time Clock (RTC), in-situ EEPROM rewriting on the BBC, the IBOS recovery mode.

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10 авг 2022

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Комментарии : 26

@hemi-pilot 23 дня назад

Excellent video Sir. I also own both a B+ and a Master. My Master is fully kitted out, now I can do the same to my B+.

@RetroBytesUK 10 месяцев назад

I'm right there with you on the master being my favourite BBC model. The internal Tube port I think being one of my favourite bits, as I was lucky enough to get hold of a internal 6502 co-pro a long time ago. I'm currently watching my way through all videos, really enjoying them.

@RetroMarkyRM Год назад

Excellent. Keep up the good work

@GeorgeFoot Год назад

Great video, very clearly presented run through of all the features, thank you!

@oldnotobsolete.2925 Год назад

Very informative and a lot of detail. Thanks.

@FrancisFjordCupola 9 месяцев назад

Pretty much very cool. Despite the hot studio. Love seeing all the details. Still thinking of finding an alternative to the 16K sideways ram I have in my Beeb. It was one of those very, very cheap boards that I picked up for next to nothing in the early 90's.

@kenlowe5220 Год назад

Hmmm. Previous comment with link was deleted. Thank you for the review. Please note there is a new version 1.24 of the IBOS ROM that addresses a few legacy issues. This can be downloaded from the Stardot forums. Unfortunately youtube won't let me post the link, so you'll need to search the forum.

@lsbyte Год назад

Thanks - I saw the message on Stardot. That update is timely as I hadn’t got round to putting the screws back in the case yet! I’ve updated it to 1.24 and put my ANFS back to the stock 4.18 and all looks good!

@lsbyte Год назад

And the latest 1.26 release is even better, with enhancements to the TIME handling, and allowing two values for LANG: one with Tube and one without!

@tenminutetokyo2643 3 месяца назад

But will someone soon make a mini new mini version.

@matthewday7565 Год назад

I remember making an "ugly bug" RAM module, 2x 8k chips stacked and one 74-something on top to steer them

@VK2FVAX 4 месяца назад

This was great. Dearly wish I could buy one or a modern one for my Beeb. Anyone doing production runs of hobbyist boards?

@lsbyte 4 месяца назад

Ken often has some available - you can check and ask on here: stardot.org.uk/forums/viewtopic.php?t=17455

@G7LWT 6 месяцев назад

Fascinating - thanks for taking the time to create this video, in such high quality - much appreciated. I fall into the BBC B fans category, rather than the Master, so learning about the Integra was quite an eye-opener. Is Ken still producing these boards?

@lsbyte 6 месяцев назад

Thanks! Ken does make new boards occasionally - if he has them for sale, he posts in this thread on Stardot: www.stardot.org.uk/forums/viewtopic.php?t=17455&start=60

@evanvenn Месяц назад

@@lsbyte Yes, I got one from Ken recently. Very high quality and it worked first time.

@MrLurchsThings Год назад

You mentioned the remake was from 2019? Is it still available now?

@kenlowe5220 Год назад

Yes, I still have a couple available. Have a look at the For Sale section in the Stardot forums. Unfortunately youtube won't let me post a direct link, so you'll need to search the forum.

@michaelstoliker971 Год назад

The BBC micro is a fascinating computer because of all the features. This was clearly not meant to be a consumer PC with limited expansion and a minimalist OS like a Commodore or Atari.

@lsbyte Год назад

I think it was one of the few machines which actually came through on everything promised: networking, Tube processors, CP/M, hard discs, Teletext, etc. Having the reliable schools market helped enormously here, I think. The operating system actually looks like it's been defined properly, too: with very little need to hit hardware and everything working across the Tube with different coprocessor architectures.

@michaelstoliker971 Год назад

@@lsbyte I don't really understand the "Tube" concept or how it works.

@blackterminal Год назад

Not a fan of that on board battery. :)

@kenlowe5220 Год назад

It was done that way to keep it looking like the original board. If you're worried about battery leak, it can be removed, and replaced with a 2 pin header so a remote battery can be used instead.