Part number: 6BY6. Tested – This tube has been tested with a B&K or Hickok tube tested. The tube passed all tests that are applicable to this type of tube. The tube was allowed to warm for at least 30 seconds before testing.
Part number: 6BY6. Tested – This tube has been tested with a B&K or Hickok tube tested. The tube passed all tests that are applicable to this type of tube. The tube was allowed to warm for at least 30 seconds before testing.