The Ambra Computer Corp was formally born yesterday when IBM Corp introduced its Ambra clone concept to the US, setting the company up in Raleigh, North Carolina under David Middleton, a former NEC Corp manager. Ambra also made its launch eye-catching by including what it claims is the first dual-Pentium machine, and models using its own clock-doubling Blue Lightning 66MHz/33MHz 80486 chip. The company has gone back to its original personal computer assembly partner, SCI Systems Corp in Huntsville, Alabama to make the things for the US. Merisel Inc will staff the telemarketing operations of Ambra and will provide access to its vast product catalogue. Ambra desktop models with a 80486DX2 chip will start at $2,000. Colour notebooks go from $2,000 to $3,500. TP66E2/VL with dual 60MHz Pentiums, is $5,000. They use AT or EISA bus and offer MS-DOS 6 and Windows.