Dr David Mills

#AskTheFediverse
Does anyone recognise this core memory panel? I might be able to get a clearer photo of it soon.

Might be made by ampex.

Mar 31 at 12:48pmWeb
Show threadDr David MillsMar 31
Better photos.
Board is made by Ampex
Possibly part number 3238862 01H
Show threadDr David MillsMar 31
If my scanner wasn't broken I'd have got a high res scan of the board.
Show threadNiels MoseleyMar 31
@dtl are those DEC part numbers on the ICs?
Show threadDr David MillsMar 31
@trcwm not sure if that's DEC the company or just a part no.
Show threadNiels MoseleyMar 31
@dtl looks like those are bus terminators/protection devices: http://bitsavers.informatik.uni-stuttgart.de/pdf/dec/modules/gSeries/G7004.pdf
Show threadDr David MillsMar 31
@trcwm I'll have to see if I can trace some connections. Thanks for the pointers.
Show threadStewart RussellMar 31
@dtl @trcwm those DEC-2501 terminators are also used on a PDP-8 core board: https://homepage.cs.uiowa.edu/~jones/core/mm8e/
An DEC MM8E core memory module

Show threadNiels MoseleyMar 31
@dtl this looks very similar (connector on one side only, ampex, and two connector fingers bridged): https://www.amazon.com/Ampex-3256749-01-Memory-Board-325674901/dp/B081TDXQZZ
Show threadEmmaLovelaceMar 31
@dtl any help?
https://www.deadprogrammer.com/tag/magnetic-core-memory
Magnetic-core memory – Dead Programmer's Cafe

Dead Programmer's Cafe
Show threadDr David MillsMar 31
@emmalovelace That looks very similar to mine - cheers!