can i have a U please
a C next, if you please, Judd
What connects these four?
W I - - I A M/- - O C - - E -
- A N/C - O C - R A - - - I
W A - T E R/- R A T T A I N
- D W I N/- A - -
Letters Used: N, A, E, I, R, D, M, O, T, C,
Not Used: U
can i have a H please
WILLIAM SHOCKLEY
JAN CZOCHRALSKI
WALTER BRATTAIN
EDWIN LAND (or BEARD?)
They’re all famous inventors
i did have same in mind but was confused as the E was not put in for name EDWIN
Nor the ND if it’s LAND, nor the BRD if it’s BEARD, but there aren’t any more Edwins!!!
Oops. My bad . 
Edwin Land is incorrect as is the link - back to the drawing board all. 
How did you manage to arrive at Beard with a four-letter surname? 
It was a guess!
Thought you might have missed out a letter:-D!
Never. 
A clue: think of Albert and the promenade concerts for the final name.
EDWIN HALL
All to do with invention of transistors?
Bingo! Give that woman a ceegar…
Well done Ruthio - all took part at various times in the development of the transistor. 
Eyes down then…what and who?
_ _ _ _ / _ _ / _ _ _ _ _ _
_ _ _ / _ _ _ _ _ / _ _ _ _ _ _
_ _ _ _ _ _ _ _ / _ _ _ _ _ _ _
Letters used:
Can I have an A please Ruthio?
Eyes down then…what and who?
_ _ _ _ / _ _ / _ _ _ _ _ _
_ _ _ / _ _ _ _ _ / _ _ _ _ _ _
_ _ _ _ _ _ A _ / _ _ _ _ _ _ _
Letters used: A
Can I have an N this time please?
Eyes down then…what and who?
_ _ N _ / _ _ / _ _ _ _ _ _
_ _ _ / _ _ _ _ _ / _ _ _ _ _ _
_ _ _ _ _ _ A _ / _ _ _ _ _ _ _
Letters used: A N
S please Ruthio
Eyes down then…what and who?
S _ N _ / _ _ / S _ _ _ _ _
_ _ _ / _ _ S _ _ / _ _ _ _ _ S
_ _ _ _ _ _ A _ / _ _ _ _ _ _ _
Letters used: A N S