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Sunday, July 3rd, 2022
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Tech-II Hardware

This is a video game board I designed for Techstar.

Games I wrote for this board included Rockball, It, and Cards-n-Quiz, AKA "Little Las Vegas.

The hardware incorporated 256x256 RGB output, hardware line drawing assist, dual AY-3-8910 sound chips, stereo audio amplifiers, and was capable of a full boat of 6809 RAM and/or EPROMs in any combination, with 14k of the RAM battery backed up. The video RAM was a separate system with XY/RGB/vector control ports. In addition, the board featured a hardware "kick" to make sure it didn't lose its mind, and interfacing for multiple controls as well as dedicated coin slot logic.

#hardware #rockball #it #cardsnquiz #6809 #design #arcade #techii #pcb #notes

EXIF:

Width: 2562
Height: 3785
Company:  Canon
Camera:  Canon EOS 6D
Shot On:  2022:07:03 08:23:22
Lens Model:  EF50mm ƒ/1.4 USM
Aperture:  ƒ/8.0
Focal Length:  50.0mm
Metering Mode:  Spot
Exposure Mode:  Auto
Flash:  Did Not Fire
Exposure Time:  1/100th second
Exposure Program:  Aperture Priority
ISO:  8000

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