2 Jan
2018
2 Jan
'18
4:09 p.m.
> 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.
>
>