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1. Telefunken ECC83 / 12AX7 Long Plate Valve/Vacuum Tube, Tested Strong (#22)

   A used tube in good condition and in working order. It is particularly strong on the first triode, but this isn’t an issue as pre-amp tubes are self balancing. Plate Current: ia (mA) 1.2 2.6 1.6. Actual Readings.

   eBay

2. Telefunken ECC83 12AX7 Long Smooth Plate Valve Tube Used Tested (V13) #1

   ECC83 12AX7 Valve Tube. Long Smooth Grey Plates, Halo Getter. Fully Tested on Avo VCM 163.

   eBay

3. Telefunken (Sonotone Label) ECC83/12AX7 Long Smooth Plate Diamond Germany

   Labeled as Sonotone. Long Smooth Plate. Diamond on Bottom. Made in Germany. Label is partially erased. Tested in my preamplifier to make sure working as intended with no issues at all.

   eBay

4. Telefunken ECC83 12AX7 Valve Long Smooth Plates Halo Getter - Boxed, Tested Good

   eBay

5. Telefunken ECC83 12AX7 Double Triode Tube Valve Rohre

   All our tubes are tested f or shorts and gas leak. S = 2.0 / 2.0 mA/V all (1.6 = 100 %). Result: Ia = 1.5 / 1.5 mA all (1.2 = 100 %).

   eBay

6. Pair of Telefunken 12AX7 ECC83 Smooth Plate 1962 Vacuum Tubes

   Identical 1962 dates, and excellent print on the glass. Perfect balance between the sections within each tube. Both tubes feature the characteristic diamonds cast in the bottoms of the glass. Number 12AX7.

   eBay

7. ECC83 12AX7 EI Yugoslavia Telefunken Long Smooth Plates 17mm NOS Matched Pair

   Diamond bottom is not proof any more. The only differences are in thickness of halo getter and in "staples" which are facing each other.

   eBay

8. ECC83 / 12ax7 TELEFUNKEN Ribbed Plate - NOS 60's

   100% = 1,2 mA!

   eBay

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