I've dealt with All Electronics for like 30 years now, and am kind of disappointed that they've raised their free shipping to around a $100.00, after being around $75.00 for the last 25 years, or so. Then again, so hasn't everyone else, but can't really blame them. Anyway... They do have some neat products that they come across when they buy surplus warehouse stock. And, this one looks neat to try for $20.00: [
www.allelectronics.com] Sure... To get that order up to the $100.00 limit, I'd buy and try one. Lots of places want $20.00 for just a single tube.