Not HP. They used much smaller Ampex made core planes in the 2116. Marc
> On Jan 1, 2018, at 4:52 PM, Adrian Stoness via cctalk <[email protected]> > wrote: > > could be hp or phillips? > > > On Mon, Jan 1, 2018 at 6:03 PM, Steve Malikoff via cctalk < > [email protected]> 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. >> >>
