5U4GB :
RCA, NOS/NIB, red print on base (box dented but crisp)
RCA, red print on base
Sylvania, yellow print on base
Sylvania, red print on base
Conn, yellow print on glass
5Y3GT:
RCA NOS/NIB, red print on base (nice box)
RCA, red print on base
Zenith, silver print on base, marked 59-48 (x2)
Flap on both NOS boxes indicate "9-60".
Unless otherwise noted, tubes are untested, used pulls. However, they were all pulled from working equipment and several have been subsequently used by me with no issues. As such, the used pulls are sold as-is.
The NOS tubes are from a lot of unused, boxed RCA tubes I purchased from a retired engineering professor. I will guarantee that they look, test and perform as NOS.
Asking $75 for the lot, which includes US shipping. PP F&F, please.
