LDG Product Software, Firmware, and Hardware Upgrades

These are the current versions. Please don't ask if there is something more current, because there isn't. Current Products and Versions AT-7000 $10 Version 1.1. Improved tuning algorithm AT-1000 $20 Version 2.0 or 2.5 (they are actually identical).  Adds 200 fast memories. Improved tuning algorithm. Upgrade chip. AT-897 No upgrade chip available. AT-200Pro $10 Version 1.2. Improved tuning algorithm. Upgrade chip. AT-100Pro $10 Version 1.3. Improved tuning algorithm. Upgrade chip. Z-11Pro $10 Version 1.5. Improved tuning algorithm. Upgrade chip. Z-100 $10 Version 2.8. Improved tuning algorithm. Upgrade chip. NOTE: This upgrade is ONLY available for circuit boards having the designation of V2.3. The marking may be in three places; all the way to the left side, all the way to the right side, and all the way in the back. Discontinued Products AT-11MP $20 Version 1.6. Adds 200 memories. Upgrade chip. Z-11 $20 Version 1.6. Adds 200 memories. Upgrade chip. AT-100AMP Conversion Chip $10 "Make Your Own AT-100AMP" Remove the Main PCB from the AT-100PRO and Change to this CPU for AT-100AMP Functionality