Telefunken ECC83 12AX7 12AU7 Amperex ECC82

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This is a special package of 12 closely matched (some perfectly matched) Telefunken, Amperex, and RCA tubes.There tubes were tested on a WESTON 981 true MUTUAL CONDUCTANCE tube tester. I've sold lots of tube with the readings on this tester AND NOT ONE COMPLAINT EVER.There are four(4) Telefunken 12AX7/ECC83 with strong and close readings of:1100/11001000/10001000/12001000/1000Minimum on tube tester 850The label/stencil on these are not that good. you can see the Telefunken logo but some don't have the 12ax7/ecc83 showing anymore. see pictures. don't bit if you need perfect stenciling! There are two(2) Telefunken 12AU7/ECC82 with strong and close readings of:1250/11501100/1100Minimum on tube tester is 720The label/stencil on these look goodThere are four(4) Amperex 12AU7 with strong and close readings of:1050/10001000/10001100/11001000/1000Minimum on tube tester is 720The label/stencil on these look goodThere are two(2) RCA Clear top 12AU7's. I know these are not as desired as the other tubes but these are specially selected for Tektronix test equipment and are as about as matched as you can get.The imaging you would get with these tubes in any preamp would be astounding.Tubes have readings of:1050/10501050/1050As you can see in the pictures the serial numbers are very close.All tubes come in a white box with the readings marked on read more

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