Just +5V. Thanks for the suggestion. Joe Gray W5JG On Mon, Apr 18, 2011 at 2:32 AM, Poul-Henning Kamp <phk at phk.freebsd.dk> wrote: > Check if the MK36* need more than a single +5V supply... Old EPROMS > usually needed two or even three different supplies. > > -- > Poul-Henning Kamp | UNIX since Zilog Zeus 3.20