Make this my favourite GTIAdigitizer (Atari 8 Bit Computers 400/800 etc) - c0pperdragon Adaptor

Retro Computers >> Atari
Listing type:
Fixed Price Multiple Items
Item Condition:
Seller location:
Caerphilly, Clwyd, United Kingdom
Ending in:
24 days, 03h:37m:16s
Quantity Available
Latest buyer:
l***g (6)
Fixed price:
£39.99 Buy now!
Shipping Costs:
Free delivery available
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Number Sold:
7 (View history)
Buyer Value Date and hour Quantity bought
l***g (6) £39.99 10/07/2024  10:24:04 1
W***R (3) £39.99 07/06/2024  22:41:43 1
D***s (3) £39.99 23/05/2024  11:59:31 1
c***7 (1) £39.99 30/04/2024  16:55:11 1
8***r (11) £39.99 28/04/2024  21:26:44 1
E***1 (1) £79.98 12/04/2024  21:35:38 2

Item Number : 64301

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Fixed price: £39.99
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What is it?

This board is inserted between the GTIA chip and its socket in one of the Atari 8-bit home computers. The FPGA on the board listens to the digital communication between the GTIA and the rest of the system and re-generates the video output in a near-digital form. This output signal (we call it 'lumacode') can then be flawlessly upscaled to a pixel-perfect HDMI signal using an RGBtoHDMI device or something with equal capabilities.

Why did you make it?

The original video output of homecomputers of the 1980th is of pretty low quality. Using a modern TV to display this signal normally does not make this any better. In fact it normally just exaggerates the visible noise. Also there is basically no way to improve the analog signal because of the random nature of the noise.

With my digital-only approach, the monitor picture is absolutely perfect without any noise or ghosting.


The board should work with all variants of the Atari 8-bit machines that have a CTIA/GTIA video chip.

Boards shipped since 29.9.2023 have the firmware version 1.1 that fixes a display issue with the "Atari Control Picture" program. I know of no other program that did not work with the previous version already.

Starting with 22.3.2024 all boards are shipped with firmware version 2.0 that fixes some additional minor incompatibilities with GTIA display modes.




Lumacode RGBtoHDMI Board

Purchase this and a Lumacode RGBtoHDMI and recive £10 off the combined order, please ask for an invocies before paying.

This is the Item -

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Shipping and Payment

Item Location:
Caerphilly, Clwyd, United Kingdom
Shipping conditions:
Buyer pays shipping expenses
Shipping Costs:
  • To United Kingdom :
  • Second Class Post : FREE
  • To EU :
  • Intl Signed For : £6.00
  • To Europe (Non EU) :
  • Intl Signed For : £8.00
  • To Americas (Non USA) :
  • Intl Signed For : £10.00
  • To Rest of World :
  • Intl Signed For : £10.00
  • To USA :
  • Intl Signed For : £10.00
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