Tag: piggyback

2 matching upgrades

Showing 2 products.

StatusProductWhat it doesCompatibilityLinks
Sold outChecked Jul 24, 2026PiggyBack8Mby A2Heaven
memoryramworkspiggybacksolid state diskbattery backed8mb

Adds 8 MB of low-power SRAM and battery-backed storage to a RamWorks III card.

The card is currently listed as out of stock. It is an add-on and requires a compatible RamWorks III base card.

Sources
  • Apple IIe Exact model
Vendor product page and manual
Build itChecked Jul 24, 2026Ultimate Gated Video (UGV-II)by MyTek
composite videos videogtiapiggybackinternal upgradeopen hardwarediy

Improves Atari 8-bit analog video and corrects overscan for modern displays.

The Brewing Academy configurations were sold out on 2026-07-24. MyTek publishes the current UGV-II schematic, bill of materials, PIC firmware, and Gerbers. The 0.8 mm main board requires assembly and PIC programming. A normal installation is nearly solderless at the GTIA, but routing video to the stock DIN connector can require a few motherboard solder points.

Sources
  • Atari 600XL Exact model
  • Atari 800XL Exact model
MyTek UGV project pageThe Brewing Academy UGV page