Question about core sense amplifiers

Vincent Slyngstad v.slyngstad at frontier.com
Tue Mar 10 10:08:05 CDT 2015


I've got a technical question about core memories.  I've been 
looking, in particular, at the MC1540G sense amplifier.  There's 
an external capacitor that is supposed to be connected between 
pins 1 and 10 (it looks like about .01uF was traditional).  Maybe 
I'm being thick this week, but I don't quite get what this does 
for the circuit.  It's part of the "DC restoration" section.

I think I have some idea what amplification and slicing mean 
in this context, but "DC restoration" isn't firing any neurons.

Can any of you that have studied how core works help me 
understand this?

Thanks,

    Vince
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