I finally got my first PCB through in the post today. Very happy with it, but I made a very amateur mistake in my excitement and eagerness to have it ordered. I seem to have used a 2N2222 part with the wrong pin out.
R5 should be to the base of T1, however all the 2N2222s I have seem to have the base on pin 2, not pin 3 as shown here.
Does anyone know how I could track down a version of this transistor that has the pin out of 1 - emitter, 2 - collector, 3 - base? The datasheets I've trawled through so far seem to indicate I might be out of luck.
Lesson I've learnt here, don't autoroute without checking very carefully.