Mystery DEC backplane on eBay

Noel Chiappa jnc at
Tue Jul 16 18:30:49 CDT 2019

For those who saw this item:

but didn't know what it went to (Web searches for "5409818" and "5009817"
didn't turn up anything useful for me), it turns out to be a "Configuration
2" backplane for a PDP-11/05-/10:  

with slots for one MM11-L memory unit, and 4 SPC slots.


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