NOTE: Tubes have sanded glass or matte finish (see larger picture). It is not dust, so don't try to clean it. Brand New, MINT NOS NIB NOVEMBER 1969 production Tungsram EL84 6BQ5 Tubes. Made in Hungary. All tubes from the same batch.
Tungsram made some of the
finer tubes in Eastern Europe due to its exposure to subsidiaries in
Gt. Britain and Austria. Awesome tone for Guitar Amps and great for
Audio.
NOTE: Those are NOT burn marks on the tubes. This flashing pattern is peculiar to Tungsram EL84's.
Also, the flashing pattern varies within tubes from the same batch/date code. It is normal. Tested and matched on Top of the Line Calibrated
Hickok 580 Lab Grade Tester recently calibrated by late Chris Haedt. 65%=7000 mmhos for EL84/6BQ5 on this tester.
Single Tube = $50. Select 2 for a Matched Pair.
