Shared projects

Atari Pause Mod V2.0B

by SwampFox56.

2 layer board of 0.89x1.08 inches (22.71x27.46 mm).
Shared on September 4th, 2016 06:10.

For the Atari 2600. Based on Victor Trucco’s schematic; this board intercepts the read, write signals from the TIA and 6507. Shorts them to ground which puts the processor in a “HALT"ed state.

TIA Pin 3 (RDY) has to be lifted, but Pin 3 (RDY) of the 6507 stays connected to the board. You can lift TIA Pin 3, but removing resistor R207 is exactly the same as lifting the pin. More advanced install instructions here.

http://www.coolretroprojects.com/Atari_2600_Pause_Mod_Installation_Guide.pdf

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NES Toploader Composite Mod V0.1A

by SwampFox56.

2 layer board of 0.69x0.88 inches (17.48x22.40 mm).
Shared on August 27th, 2016 00:19.

Been sicker than hell, so I made something simple.

This is the Composite Video Mod for the NES-101 (aka Toploader). Pad marked “PPU” gets soldered to pin 21 of the RP2C02 (PPU). Pin must be lifted from the board.

Also, there is no ground. Instead, a ground connection is achieved when you screw the board to the RF shielding. This is a test version of the board. Feel free to try.

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Atari Pause Mod V2.0A

by SwampFox56.

2 layer board of 0.88x1.08 inches (22.23x27.31 mm).
Shared on July 3rd, 2016 08:16.

For the Atari 2600. Based on Victor Trucco’s schematic; this board intercepts the read, write signals from the TIA and 6507. Shorts them to ground which puts the processor in a “HALT"ed state.

TIA Pin 3 (RDY) has to be lifted, but Pin 3 (RDY) of the 6507 stays connected to the board. You can lift TIA Pin 3, but removing resistor R207 is exactly the same as lifting the pin. More advanced install instructions here.

http://www.coolretroprojects.com/Atari_2600_Pause_Mod_Installation_Guide.pdf

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Sega 32X S-Video V1.0B

by SwampFox56.

2 layer board of 0.90x0.56 inches (22.81x14.17 mm).
Shared on June 14th, 2016 05:20.

Tested, and not working. The FMS6400 draws too much current from the 32X, making it so the 32X does not properly turn on.

Decided to share this because it was simple and I couldn’t get it to work. Feel free to test, and use my design. Please just give me credit ;)

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BA7230LS Breadboard Adapter V1.0B

by SwampFox56.

2 layer board of 0.59x1.27 inches (15.09x32.39 mm).
Shared on May 11th, 2016 19:03.

The silkscreen print is misaligned, and the 10uF bypass cap goes off the board a little. But hey! This has been tested and works great on a breadboard!

Capacitors are 10uF (electrolytic) and 47nF.

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