Gaps in the collection (was Re: rarest computers. )

[Tony Duell]

> I wish I'd kept the Ferranti ones I had -- lovely PCBs with alloy
> surrounds, carefully wirewrapped.  They were TSR2 avionics.

Somewhere I have a Ferranti computer module (it's not a PCB). It's an 
SRBP panel with solder tags riveted to it. At the 'handle end' (the 
'handle' is a cutout in the SRBP), there's an aluminum bracket with 3 B9A 
(9 pin miniature) valvholders on it, which seem to contain double 
triodes. There are some R's and C's soldered between the tags.

It's some simple logic function (maybe a couple of gates, maybe a 
flip-flop, I am not sure). I was told it was from an Argus, but again I 
am not sure.

-tony