I had been saving these for the DAC but I moved on to another so these are for sale. All tested at real-world voltages on an
Amplitrex AT-1000, and they test NOS spec. or better.
Tesla ECC82 big bottle gray plate - $20 shipped
Amperex Holland 7316 halo gray plate 1969 - $70 shipped
Mazda 12AU7 Fench Signal-Corps mil-spec gray plate halo; in original boxes and brown wrapper - $40 shipped
RCA 5963 square getter 1950s blk plate - $50 shipped
Telefunken 12AU7 labeled for Mazda - $70 shipped
CBS 5814 gold-pin D-getter RARE 1950's - $95 shipped
Ken-Rad D-getter 12AU7 silver-coated black plate (RARE plate type); NOT a silver plate but some kind of silvery gray plating on a darker plate - $28 shipped
Raytheon JRP 12AU7 Black plate D-getter - $35 shipped
Tungsram 12AU7 gray plate "S1" engraved on support - $40 shipped
RTC/Mazda 1957 halo on double getter support; wing-plate type. One of the very first 12AU7's in production. Original box. - $80 shipped
Tung Sol 12AU7 D-getter 3mica - $30 shipped
Siemens 12AU7 silver-plate halo - PENDING?
RCA 12AU7 Gray clear top - $15 shipped