MATCHED TRIODES E80CF VALVO TUBE GOLD PINS /TESTED WITH ROETEST V10 NOS For sale is a pair of E80CF GOLD PINS . The tubes passed all quality tests (vacuum, leaks, shorts etc.), measured with Roetest, curves analyzed, maximum accepted spread for this selection is +/-2% , the buyer will get all data, actual datasheet – test protocol, for each tube. In photos you can see example of data for a wonderful pair. Tested with Roetest V10, "the Rolls Royce of tube testers" [emissionlab quote], a wonderful german professional system for testing tubes, it shows everything about a tube. |