(NOT JJ or TESLOVAK CURRENT PRODUCTION JUNK)
Set of 3 USED EL84 tubes as shown in the picture. From left:Tube 1 - 1962 Original TESLA EL84 Round Smooth Plate. Rožnov production from former Czechoslovakia. A variant of the Tesla Round Smooth Plate (copy of Telefunken EL84)....8750 mmhos
Tube 2 - Late 1960s Original TESLA EL84 HEX Plate. Rožnov production from former Czechoslovakia....8500 mmhos
Tube 3 - TELAM EL84. Poland....7500 mmhos.
Tested and matched on Top of the Line Calibrated
Hickok 580 Lab Grade Tester recently calibrated by late Chris Haedt. Minimum 65% = 7000 mmhos for EL84 on this tester.
Set of 3 Tubes = $40.