NOTE: Valvo Hamburg made E81CC 6201 is one of our TOP 3 ECC81/12AT7 types. Other 2 are Siemens E81CC 3-Mica 1960s and Brimar CV4033. Harmburg plant made tubes are rather obscure and some of the very best from W. European tube makers. We had been looking for these for a while and got lucky with this small lot.

Brand Spanking New, MINT NOS NIB 1967 VALVO Hamburg SQ QUALITY E81CC 6201 12AT7WA Gold Pin tubes with ADZAM Label. These are premium version of ECC81/12AT7 Type tubes. Valvo Hamburg production date codes of DF6 D7I2/D7I3/D7I4. Made in West Germany. Getting very scarce in brand new condition.

Tested and matched on Hickok 752, calibrated and modified by Hickok expert to all Solid State to eliminate drift. However, on average 12AT7 measures lower on this 752 than it should.

For comparison, 12AT7 measuring 4400-4400 on calibrated Hickok 600 measures 3300-3300 mmhos on this 752. Average new 12AT7 on Hickok 600 is 4000 mmhos. In other words, actual test scores are higher than what we have noted on the tube boxes.

Single Tube = $75. Select 2 to get a Matched Pair.