Apologies to all if this isn't the right place to post this. I have (2) 10BP4s that test good and produce a bright picture. These are NOT NOS tubes. They test in the good zone of my Sencore, but are just over the line. They are however serviceable tubes that produce a nice picture. I need a 12LP4 (or it's metal or aluminized variant) to complete the restoration of my Zenith porthole. I'm looking for a good tube that will last for a while. I live in Connecticut and would prefer a local swap but would be willing to ship. I could put the 10bp4s on EBay and use the proceeds toward a Hawkeye rebuild of the 12LP4 dud that came with the set. However, I would prefer to swap (less work). If anyone is interested please email me at mcstamper_at_sbcglobal.net (substitute @ for _at_). Thanks.