http://www.sunrise-ev.com//membershipcard.htm Chuck Yakym's MCSMP Super Monitor Program, plus BASIC3, both in a single 32k EPROM. Download one of these files, and burn it into a 27C256 EPROM. Here are Quickstart notes from Chuck Yakym for his programs. These versions are for an EPROM addressed to start at 8000h, with RAM addressed at 0000h. In classic ELF fashion, load a LBR 8000 instruction (C0 80 00) into the first 3 bytes of RAM, and execute it. MCSMP20.bin for rev.I and earlier Membership Cards. MCSMP20J.bin for rev.J and later Membership Cards. http://www.sunrise-ev.com//MembershipCard/MCSMP20J.bin These versions are for an EPROM addressed to start at 0000h, with RAM addressed at 8000h. The monitor starts immediately on power-up or reset, so no Front Panel or "jump" instruction is needed to start them. MCSMP20A.bin for rev.I and earlier Membership Cards. MCSMP20B.bin for rev.J and later Membership Cards. <---THE VERSION WITH YOUR KIT at VCF-EAST 2019 http://www.sunrise-ev.com//MembershipCard/MCSMP20B.bin My PROM programmer's checksum is 00595301H. ---------------------------------------------- http://www.retrotechnology.com/memship/basic3_ftdi.html Instructions and photos on use of FTDI device, USB to TTL converter, 1802 Membership Card, and Windows "Hyperterminal" comm program. ------------------------------------------------ Terminal set at 1200,N,8,1 When MCSMP20B.BIN is running, enter CR on your terminal (program). The ROM should respond with: Membership Card's Serial Monitor Program Ver. 2.0B Enter "H" for Help > ------------------------------------------- http://www.retrotechnology.com/memship/memship.html Home page for Herb Johnson's 1802 Membership Card Web pages.