Wanted: vacuum tube logic circuits

[William Blair]

> I found some on Bitsavers.
> 
> "Illiac design techniques" (under univOfIllinoisUrbana/illiac/ILLIAC)
> describes the basic logic elements, which are then just hooked
> together as building blocks (And, Or, Not, and flip-flop).

Those are very useful.  Thanks.

> Under ibm/sage there's a documents list -- only one of the documents
> is actually there but a lot more are listed, including circuit
> diagrams.  Maybe those are available...

The two I’d _really_ love to see even if they didn’t have info I could actually use are:

31P2-2FSQ7-142 Maintenance Techniques and Procedures of Central Computer for AN/FSQ-7, Combat Direction Central
31P2-2FSQ7-212 Schematics for Central Computer of AN/FSQ-7, Combat Direction Central

Unfortunately, they aren’t on Bitsavers.  I wonder if these were classified TOs.