El34 tubes quad mullard tube amplifier metal base 6ca7 vintage matched kt77 50′s. El34 tubes , 4 pieces = quad. Code SYO 55K = 60 code print 027. Code SYO 55K = 62 code print 027. Code SYO 55I = 62 code print 027. Tube tester TV7 D/U (reference good at 30). All tubes tested strong and matched. Year of production 1955 old production , ORIGINAL print on glass , full disc getter on top. Same identical inner structure for all 4 tubes. All tubes with full flashed area dark getter top. The item “El34 tubes quad mullard tube nos amplifier metal base 6ca7 vintage matched kt77″ is in sale since Thursday, November 26, 2020. This item is in the category “Consumer Electronics\Vintage Electronics\Vintage Audio & Video\Vintage Parts & Accessories\Vintage Tubes & Tube Sockets”. The seller is “cartago_delenda_est” and is located in Verona. This item can be shipped worldwide.

• Model: el34 = 6ca7
• Modified Item: No
• Country/Region of Manufacture: Netherlands
• Custom Bundle: No
• Type: NOS Tube
• MPN: el34 = 6ca7
• Brand: Mullard