ID some core memory

On Jan 1, 2018, at 4:52 PM, Adrian Stoness via cctalk <cctalk at classiccmp.org> wrote: could be hp or phillips? On Mon, Jan 1, 2018 at 6:03 PM, Steve Malikoff via cctalk < cctalk at classiccmp.org> wrote: > Bill said >> Just curious...can anyone id the system that used these two types of core >> memory? I am thinking the first is a hand-made custom core, but the 2nd > is >> definitely from a commercial system. Looks kind of IBM-ish but it's >> nothing I can ID. It's not an IBM 1401 I don't think. >> http://vintagecomputer.net/core-memory/ >> Thanks >> Bill > > It's not a 1401 core plane. Here are a couple of pictures of what (I am > pretty sure) is a 1401 core plane that I have from my dad: > http://web.aanet.com.au/~malikoff/ibm/IBM_1401_core_memory_plane_1.jpg > Close-up. Has a sharp molded corner and the grooves for the wires: > http://web.aanet.com.au/~malikoff/ibm/IBM_1401_core_memory_plane_2.jpg > > Refer to PDF page 12 of http://www.bitsavers.org/pdf/ > ibm/1401/A24-1403-5_1401_Reference_Apr62.pdf > for another photo of this. > > Steve. > >