I bought a "Lot" of tubes. Spend an afternoon running them thru my Triplett 3444 testing for shorts, leakage, gas, and Transconductance.
I failed 20% for Gas or leakage.
I'm keeping 2 sets for myself and have 2 sets left over I don't need.
Here is the first set
Maker === GM)
RCA === 4400/4600
RCA === 4400/4600
RCA ===4500/4600
RCA ===4400/4600
Here is the second set: (Maker === GM)
Sylvania === 4800/4600
RCA === 4700/4600
RCA === 4400/4600
RCA === 4600/4600
A reject level would be 3000 and a "NEW" or Bogey level would be 4600.
These were tested for GM, Gas, Shorts, and Leakage. The worst tube out of the 8 tests 95% of new.
I would have about $12.00 a quad in them shipped CONUS. They are White boxed and the specs are on the box.
I failed 20% for Gas or leakage.
I'm keeping 2 sets for myself and have 2 sets left over I don't need.
Here is the first set
Maker === GM)RCA === 4400/4600
RCA === 4400/4600
RCA ===4500/4600
RCA ===4400/4600
Here is the second set: (Maker === GM)
Sylvania === 4800/4600
RCA === 4700/4600
RCA === 4400/4600
RCA === 4600/4600
A reject level would be 3000 and a "NEW" or Bogey level would be 4600.
These were tested for GM, Gas, Shorts, and Leakage. The worst tube out of the 8 tests 95% of new.
I would have about $12.00 a quad in them shipped CONUS. They are White boxed and the specs are on the box.





