The Agat-9, produced after the Agat, was a fully compatible Apple II+ system with real expansion possibilities (6 non-apple compatible slots).
It was then possible to add memory expansion cards, serial cards, additional disk-drives and even network cards.
In fact the Agat-9 was also compatible with the more exotic Pravetz-8 and Tzyntzy computers, which were also Apple II clones.
Once I was the user of Agat 9D computer and I can tell you what origin of such machines is Bulgaria .The only known manufacturer (Edinie Sistemi in russian) United Systems in ex-USSR produced so-called United Systems series EC computers . The manufacturing plant was in Belorussia , Minsk city. I don't know much about LEMZ company , known to you as it's manufacturer , but I'm strongly believe what manufacturer was the IZOT company , which was also well-known in Russia as disk drives manufacturer.
Saturday 8th January 2005
Dmitry Dolbnin (Russia)
6502 or russian clone
128k (up to 640k)
2 KB (System monitor)
32 x 32 (8 colors), 63 x 32, 40 x 24 (monochrome)
512 x 256, 256 x 256 (monochrome), 256 x 256 (4 colors), 128 x 128 (16 colors), 280 x 192 (2 colors)
SIZE / WEIGHT
500 x 351 x 195 mm / 9kg
6 expansion slots
BUILT IN MEDIA
2 x 5.25'' disk-drives (800KB and 128 KB single side)