Not warranteed for guitar amp use. Hi-Fi Only

If you know what you're doing this shouldn't be a problem.

1950's Charcoal Black Plate Pair.

Test strong for gm at 9,600 & 10,200 where minimum good is 5650 on a Hickok 539B tester calibrated by Paul Hart.

All tubes are guaranteed to test good or may be returned.  

We cannot be responsible for what tubes test in another tester or for another metric.

Please see other items for more vintage tubes & audio.

We combine orders for shipping.

We do not change values for customs.  

Thank You.