3 pair 12AU7 and 1 pair 5963 - tested good

Sampler pack #2 - premium tubes:

$105 shipped and insured gets you 3 pair of 12AU7 and 1 pair 5814

1st two pair:

Pictures here:
https://forum.polkaudio.com/discussion/200894/12au7s-for-sale-brent-jesse-matched-pairs#latest

RCA Cleartop (CONN organ tube branded).

2200 is 100%

Tube 1
Triode 1 2250
Triode 2 2500

Tube 2
Triode 1 2550
Triode 2 2700

and

RCA 5963 Blackplate (Black Pearls)

2200 is 100%

Tube 1
Triode 1 2950
Triode 2 2900

Tube 2
Triode 1 2700
Triode 2 2700

---

2nd pair:

Pictures here:
https://forum.polkaudio.com/discussion/200895/12au7s-for-sale-rca-and-baldwin-branded-pairs#latest

RCA 12AU7 long black plate square getters

2200 is 100%

Tube 1
Triode 1 2150
Triode 2 2050

Tube 2
Triode 1 2000
Triode 2 2000

and

Baldwin 12AU7a long gray plates

2200 is 100%

Tube 1
Triode 1 2250
Triode 2 2350

Tube 2
Triode 1 2200
Triode 2 2350