ACT is parked on the upper-right under the handle. Several variants of "10003" are marked near the left handle. And it's copyrighted 1976.
ACT = ABLE Computer Technology. Their first product was PN 10001 (copyright 1976), the A.C.T. Univerter; see "Able_Univerter_Nov81.pdf" on Bitsavers. http://bitsavers.trailing-edge.com/pdf/able/Able_Univerter_Nov81.pdf -----Original Message----- From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Bob Smith via cctalk Sent: Saturday, July 21, 2018 4:44 PM To: Mattis Lind; General Discussion: On-Topic and Off-Topic Posts Subject: Re: Strange third party board in PDP-11/45 any identification number sn front or back? can tell from just that shot. On Sat, Jul 21, 2018 at 2:37 PM, Mattis Lind via cctalk <cctalk@classiccmp.org> wrote: > This board was sitting in slot 21 of the backplane in a 11/45 > > https://i.imgur.com/ZYWZQCo.jpg > > What kind of board is this? > > It has 26 bipolar RAMS. Fairchild 93415 1kbit SRAM. > > The manufacturer might be ACT whatever that is. > > My guess is that it is some kind of cache board? It is connected to both > unibuses in the machine. > > Better ideas? Documentation? > > /Mattis
