6CA7/EL34
The EL34 and it's "Americanized" version, the 6CA7, are among the most popular and sought out vintage tubes today. This tube is a pentode of the power amplifier type. It probably gained most of it's popularity as the output tube of choice in the famous Dynakit ST70 amps, but it has been around since the 1950s. It was found in musicial instrument amps, public address systems, and other types of home and professional audio systems. It packs quite a whallop in a rather small glass package, and yet, in well crafted amps like the ST70, it can image well, with a delicate airy touch and a solid bottom end. I have never heard a "bad" vintage EL34. Even those made in the late 1970s in Great Britain are wonderful tubes, easily outperforming the current made tubes of this type. The EL34 and 6CA7 are identical, and most versions have both type numbers on the label. Another British-made tube, the KT77, is also a drop-in replacement for the EL34/6CA7 family. This is an excellent, but rare tube not often found in the USA
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Factory Matched Pair JJ E34L/EL34 amp tubes, BRAND NEW | US $35.99 | 
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1 Tube Philips Mullard Valvo EL 34 EL34 (6CA7) Tubes 4 | US $32.89 |
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YS-Audio SONATAS EL34 Tube Amp / use TANGO output | US $1,250.00 |
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1 x EL34M (EL34, 6CA7) power output tube | US $9.99 |
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2 NOS EL34 6CA7 ROGERS GT. BRITAIN & AMPEREX Fender Amp | US $37.00 |
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Vintage Tesla E34L Matched Pair Brown Base Tubes EL34 | US $49.99 |
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Valab 6L6 Tube Amplifiler EL34 6SN7 12AX7 KT66 6V6 KT88 | US $600.00 |
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(35) NOS Elco 9-pin Tube Sockets Amplifier 12AX7 EL34 | US $140.00 |
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(10) NOS 9-pin Tube Sockets Amplifier 12AX7 EL34 | US $25.00 |
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4 NOS Matched Tubes EL34 / 6CA7 RFT 1960s (Tested). | US $165.00 |
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Quad set matched National Electronics EL34 6CA7 Tubes | US $61.00 |
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2 NOS Matched Tubes EL34 / 6CA7 RFT 1960s (Tested). | US $95.00 |
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Telefunken EL34 PERFECT MATCH Quad NOS tested | US $250.00 |
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Altec Lansing 1569 EL34 Tube Mono Amplifiers (One Pair) | US $850.00 |
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Marshall Model 1987 Tube Set Mullard EL34 Amperex 12AX7 | US $269.00 |
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Sovtek EL34 12AX7 Lot of 4 tubes | US $5.00 |
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100mA mA meter for BIAS 300B 2A3 6L6 EL34 6550 Tube Amp | US $15.90 |
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Pure Silver Audio Power Cord el34 6550 ecc88 12ax7 6sn7 | US $150.00 |
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Luxman SQ-38FD triode tube amp valve KT88 EL34 powerful | US $1,399.00 |
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BLACKBURN GE MADE 12AX7 ECC803S TUBES 163 B9H1 + EL34 | US $299.99 |
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