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Magnetic core memory?

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@rt:
I just dug this up from the cupboard. It's Australian made, and vintage 2017 or so :D

@rt:

--- Quote from: Sengcid on March 08, 2024, 05:47:24 pm ---I found this module. Pls pm me if you want it.

--- End quote ---
I can't read the chip clearly, but it looks like the TI logo,
and I heard TI made a pulse sensor for the detect part of the circuit.

amyk:

--- Quote from: @rt on April 19, 2024, 12:30:59 am ---
--- Quote from: Sengcid on March 08, 2024, 05:47:24 pm ---I found this module. Pls pm me if you want it.

--- End quote ---
I can't read the chip clearly, but it looks like the TI logo,
and I heard TI made a pulse sensor for the detect part of the circuit.

--- End quote ---
They look like SN1400N/SN1401N/SN1402N. Datecodes of 70xx i.e. 1970. Some have TI and some have Motorola logos. There's an interesting discussion here about whether SN14xx are actually 74xx series, which seems unlikely in that example: https://marc.info/?t=129197766200004&r=2&w=2

@rt:
I never found out how to identify the pulse sense chip unfortunately,
but was hoping to find one.
More than one person who worked with them told me there was a TI chip for the purpose though.

PA0PBZ:

--- Quote from: @rt on April 19, 2024, 10:56:39 am ---I never found out how to identify the pulse sense chip unfortunately,
but was hoping to find one.
More than one person who worked with them told me there was a TI chip for the purpose though.

--- End quote ---

Maybe this helps: http://www.bitsavers.org/components/ti/_appNotes/CA-122_Monolithic_Interfacing_in_Computers_Mar1969.pdf

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