Another blast from the past, this time it's a uKenbak-1

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rubber_jonnie
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Another blast from the past, this time it's a uKenbak-1

Post by rubber_jonnie »

If you've never heard of the Kenbak-1, I'd suggest a trip here to read all about what is considered to be the worlds first 'personal' computer. Kenbak-1 in detail

What I have is a 1/2 scale replica using modern components, but functioning just as the Kenbak did back in the day.

IMG20240316144006.jpg
IMG20240316144006.jpg (294.31 KiB) Viewed 2100 times

This kit is from the same place as my Altairduino, adwaterandstir, and is once again a very high quality kit with everything you need to get built and running.

More detail as I build it.
Collector of many retro things!
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...
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HigashiJun
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Re: Another blast from the past, this time it's a uKenbak-1

Post by HigashiJun »

A new challenger has entered the @rubber_jonnie's arena.

8-)
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rubber_jonnie
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Re: Another blast from the past, this time it's a uKenbak-1

Post by rubber_jonnie »

HigashiJun wrote: Sat Mar 16, 2024 9:03 pm A new challenger has entered the @rubber_jonnie's arena.

8-)
Oh yeah 😁
Collector of many retro things!
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...
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JezC
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Re: Another blast from the past, this time it's a uKenbak-1

Post by JezC »

rubber_jonnie wrote: Sat Mar 16, 2024 11:57 pm Oh yeah 😁
Just hearing the Bomb the Bass soundtrack to Xenon 2 in my head after reading that quote! ;)
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HigashiJun
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Re: Another blast from the past, this time it's a uKenbak-1

Post by HigashiJun »

JezC wrote: Sun Mar 17, 2024 9:50 am Just hearing the Bomb the Bass soundtrack to Xenon 2 in my head after reading that quote! ;)
:lol:
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rubber_jonnie
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Re: Another blast from the past, this time it's a uKenbak-1

Post by rubber_jonnie »

JezC wrote: Sun Mar 17, 2024 9:50 am
rubber_jonnie wrote: Sat Mar 16, 2024 11:57 pm Oh yeah 😁
Just hearing the Bomb the Bass soundtrack to Xenon 2 in my head after reading that quote! ;)
:lol:
Collector of many retro things!
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...
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rubber_jonnie
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Posts: 15024
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Re: Another blast from the past, this time it's a uKenbak-1

Post by rubber_jonnie »

Well, today was build day. First off was the temporary assembly of the front panel:

IMG20240317111606.jpg
IMG20240317111606.jpg (235.98 KiB) Viewed 2013 times

The LEDs and switches are installed, but not soldered at this point. You then flip it on it's front and the LEDs drop into position, and then you solder as this drops the LEDs into the correct position in the front panel:

IMG20240317111616.jpg
IMG20240317111616.jpg (250.25 KiB) Viewed 2013 times

This is post soldering prior to front panel removal and LED leg trimming.

The next few pics are various points during assembly, culminating in a test prior to fitting in the case:

IMG20240317120523.jpg
IMG20240317120523.jpg (253.84 KiB) Viewed 2013 times
IMG20240317120529.jpg
IMG20240317120529.jpg (250.08 KiB) Viewed 2013 times
IMG20240317120717.jpg
IMG20240317120717.jpg (230.44 KiB) Viewed 2013 times

And then running the same test once the final assembly is done:

IMG20240317122040.jpg
IMG20240317122040.jpg (211.79 KiB) Viewed 2013 times

I have to say both the Altairduino and uKenbak-1 are really well presented and easy to build kits. This build took me maybe 1.5 hours, the Altairduino rather more as it's a much more complex kit. If it wasn't for the price, I'd say that they could be built by relative beginners to kit building. The instructions are extremely good, and there are forums for them too.

Lastly here's the two buddies together :)

IMG20240317124618.jpg
IMG20240317124618.jpg (136.01 KiB) Viewed 2013 times
Collector of many retro things!
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...
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