9 Feb
2006
9 Feb
'06
2:10 p.m.
I remember seeing blue LEDs in a catalogue in the late
80s - the listing
said something like "BLUE LEDs! Yes, *BLUE* =A330 (that's right, 30 quid)=
"
I remember wehn Maplin started selling blue LEDs. The 5mm one was about
\pounds 11. I was at Bristol University at the time, and Maplin in
Bristol had a reasonable stock of compoennts back then. I bought the
first blue LED they got in, took it back to the lab and powered it up
(bench supply + suitanble resistor). I rememebr half the Physics
Depeartment coming to look at it...
-tony