Thanks all for the replies, Research on the web highlighted a couple of people who say they had trouble driving 74HC595 chips from the 3.3v logic outputs on the Pi however this may well be inaccurate - I am get hold of a few and give them a try. They are easily available from Farnell here in the UK.
Thanks for the Digikey pointer - if it turns out that I do need 74HCT's then that's a good option although shipping to the UK is a bit of a killer. Matt -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send an email to [email protected]. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/-8262369312823280610%40unknownmsgid. For more options, visit https://groups.google.com/groups/opt_out.
