edmond@Bbn-Unix@sri-unix (07/31/82)
From: Winston Edmond <edmond@Bbn-Unix> I just talked to Andy Bell at the Wellesley Heathkit Center. He says it's very unlikely (probably not possible) to directly upgrade an H19 to the Z100. The Z100 has 5 slots instead of three, and has a much larger board that he doesn't think would fit in the H19 cabinet. He did suggest an alternative for those interested in upgrading to something more powerful than the H89. The Wellesley Center (but not Heathkit itself) will be offerring the D. G. Electronics Super-89 board for $829. It is designed to be an H89 upgrade kit. The Super-89 allows up to 256K bytes of RAM, and uses a Z80 at 4 MHz. It has a real time clock and calendar, six I/O slots and two RS-232 ports. It is compatible with HDOS and Magnolia systems; MP/M from D. G. will be released soon. In August, RAMdisk capability for the Super-89 will become available. The Super-89 meets F.C.C. Type B RFI specs. The Super-89 is supposedly mentioned in a Heathkit newsletter. Andy thought that a number of Heathkit Centers would probably start carrying it, but Heath itself probably won't mention it. Interested people may call the Wellesley Heathkit Center, (617) 237-1510. If you call, please mention this mailing list. -WBE