THE GREAT MULLARD MAGIC BLOG — tx4

When posing this title question, I was reminded of an event that happened a few years ago at the NVCF.  I was attempting to sell for a good friend and BVWS committee member both an AVO VCM163 valve tester and a globe Osram PX4. A potential Italian customer sidled up to the stall, going into raptures about both items - his eyes were bulging and there was a sheen sweat on his top upper lip as he recited the valve pin settings for a PX4, well we all know 8423000000 don't we?  Certainly it resulted in the owner of these items...