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

[ben franchuk]

Geoffrey Thomas wrote:
> Reminds me of the old Radio Constructor designs where the designer made one
> transistor do both rf and af amplification.
> Can't remember his name - or what he called his designs.
> I'm sure he was knighted or something like that .... anybody ?
> - Sir Alec Douglas Hall ?    was it ?
> Sounds too much like Alec Douglas Hume !

I have no idea who invented it since it was used every where, since the 
humble
vacume tube ( valve) was invented. You can still buy or build them today.

http://www.vcomp.co.uk/one_tube_1935/one_tube_1935.htm
http://schmarder.com/radios/tube/index.htm
Ben.