ID some core memory

[Curious Marc]

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 <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.
>> 
>>