Quote Originally Posted by irving2008 View Post
No problem. Got a design worked out, uses 3 chips plus a dip switch & a handful of discrete parts. Will give you a multiplier between 1 & 256 set by the dip switch. Careful shopping should easily get under £10 including some stripboard to assemble it on. Will post up schematic over weekend after I've run a couple of simulations on it..
Star man I'll fire up the old poker iron in readyness. .