FOUR INTERNATIONAL MULLARD 6CA7 EL34 TUBES MATCHING DATE
Mullard EL34 6CA7 Tubes. The minimum for a EL34 is 30. Years ago, I put away a bunch of great Tubes. There are tens of thousands of tubes there. There is no etched code in the glass on these tubes.
2 Mullard EL34/6CA7 GT Tubes Copper Posts O SINGLE Getter for RCA Brown Base XF2
Mullard Blackburn EL34 6CA7 Brown Base Xf2 OO Getter Test NOS Electrohome
(2) Vintage Amperex “DD” Getter Brown Base EL34 6CA7 Tubes Tested @ NOS
Production codes are xf4-L1O & xf4-X9I. Also tested for Micromhos on my Hickock 800A (see photos for all test results)
Quad TESLA EL34 6CA7 Dome Top Tubes Overlapping OO Getters Test Excellent BK606
Pair Tesla EL34 6CA7 Tubes Tested Excellent for GM B&K 707 & 606 for Emissions
Tube 1 – 100 GM, 99 emissions.
NOS Svetlana Winged C EL34 6CA7 Tube Made In Russia Tested Strong B&K 707, 606
This tube tests strong for GM on B&K 707 Mutual Conductance tube tester and for emissions on B&K Dyna Jet 606.
EL34/6CA7 RFT VACUUM TUBES MADE IN GERMANY SLIM BASE
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NOS QUAD Rohre RFT (Germany) EL34 Tubes Test Results: G1 Bias/Gm/GL/IKP/VG2
Understanding Tube Test Results: G1 Bias, GM, GL, IG2, IKP, VG2. This is from a pulse test and indicates the tube’s maximum current capability. NOS Quad of (4) original RFT Germany EL34 tubes from industrial bulk case sold factory direct to amplifier manufacturers.