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[+Nezgar]

Hi All, this seemed like an appropriate place to post an Atari pic for tonight. I finally got around to testing 4 drives ( 2 810s and 2 1050s ) I've had sitting on my shelf for 5 years ( shame on me ). I _think_ one of the 810's has a Happy mod?? Here's a pic. I'm anxious to play with it if that is indeed what it is. All the drives seemed to work with a regular atari boot disk.

 

Yep, an early Happy 810 for sure. What you see there is the two stacked 2K SRAM's for 4K of RAM for track buffering. (A full track takes 2304 bytes, plus sector 1 is always buffered, so 2432 bytes) leaving a little room for uploading extra code such as the Happy Backup Utility does.

 

Try out these disks:

Happy Warp Speed Software v5.2 http://atariage.com/forums/topic/250574-810-happy-ws-52-rare-find/?p=3473274 (Also has some pics of the mod looking similar to yours)

Happy Warp Speed Software v5.3 https://archive.org/details/a8b_Happy_Warp_Speed_Software_v5.3_19xx_Happy_Computers_US

Happy Warp Speed Software v6.6 https://archive.org/details/a8b_Happy_Warp_Speed_Software_v6.6_19xx_Happy_Computers_US

Happy Warp Speed Software v7.1 http://atariage.com/forums/topic/239044-happy-warp-speed-software-disk/?p=3250240