spookie Paul,
as mrbean Terry said, Farnell (Newark actually) has em in stock..... A3977SED is listed there quite cheap... from my part of world, it takes 2 weeks from order to postman reaching my house since it's from Newark US.
Good luck and phil is really helpful, he will guide u the right direction, just bear with him sometimes, look at his signature u will know...... :P
Andy |