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Vintage Computers Any vintage computer systems, calculators, video games etc., but with an emphasis on 1980s and earlier equipment.

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Old 20th Nov 2022, 3:22 pm   #1
Phil__G
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Join Date: Mar 2011
Location: North Yorkshire, UK.
Posts: 431
Default Acorn VC2026 serial ULA chip

Free to a good home (Chris O first refusal?) Acorn VC2026 serial ULA chip
I've no means of testing it but its been kept in conductive foam so hopefully should be ok
PM please
Cheers
Phil
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Old 30th Nov 2022, 4:34 pm   #2
Phil__G
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Default Re: Acorn VC2026 serial ULA chip

Stll sorting my stash...
Again free to a good home (Tim first refusal?) Ferranti 2C184E ULA
which I think is a ZX81 or Spectrum ULA, I've no means of testing it but its been kept in conductive foam so hopefully should be ok
PM please

I also found a couple of DP8340N IBM3270 protocol transmitter/encoder chips if they're of any use to anyone
Cheers
Phil
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Last edited by Phil__G; 30th Nov 2022 at 4:43 pm.
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Old 30th Nov 2022, 5:35 pm   #3
SiriusHardware
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Default Re: Acorn VC2026 serial ULA chip

the 2C184 is a ZX81 ULA - not the late one with the back porch fixed on video unfortunately, but there is a nice little circuit in the public domain from 'zigg' which generates the missing back porch and there are PCBs available for that mod, which are intended to replace the innards of the modulator and provide properly formed composite out.
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Old 1st Dec 2022, 5:43 pm   #4
Timbucus
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Default Re: Acorn VC2026 serial ULA chip

Oh yes please I managed to blow my 2C184 on my original ZX81 fitting a composite and back porch spider addon...
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Old 1st Dec 2022, 8:57 pm   #5
Phil__G
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Default Re: Acorn VC2026 serial ULA chip

On its way....
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