Has optional mounting holes, very handy if you’d like to mount on your test bench or directly to your tube tester. Screws not included. Quad Stand fits Standard 9 & 10 Pin Tubes such as the ECC83/12ax7, 12au7, ECC88, ECC83 etc.
Item Tag: ECC83
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1959 ??? Amperex 12AX7 Quad “The Fisher” Tubes – Amplitrex Tested – I61
Up for sale, a quad of Fisher 12AX7 Holland tubes. These are all still testing pretty well – all results shown. Labels are decent to fair. Notes on testing. (Test rig is pictured for reference.).
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12AX7 Telefunken Ulm,Germany
Tube main structure in the famous “Telefunken”Ulm,Germany- double triode Cosmetic:Clear glass with a healthy,mirror-like getter flush at the top Origin branding is almost gone 45H2 might be an inventory print. Pins are straight and intact-strong no shorts Ultra low noise,balanced ,neutrality and super transient response Execution tunes for collectors and audiophiles.
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x3 TRIAD NEW Vintage NOS Amperex 12AX7A ECC83 Vacuum Electron Tubes Germany i6
x3 TRIAD NEW Vintage NOS Amperex 12AX7A ECC83 Vacuum Electron Tubes Germany i6 NEW OLD STOCK 3 TUBES AS PICTURED
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Telefunken ECC83/12AX7 Long Smooth Plate Diamond Mark on Bottom Germany Strong
Long Smooth Plate. Diamond Mark on Bottom. Made in Germany. Label is partially erased. where minimum good value is 875.
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Matched Pair Telefunken ECC83/12AX7 Long Ribbed Plate Germany Diamond on Bottom
Long Ribbed Plate. Matched Pair. Tightly matched pair! Diamond Mark on Bottom. One tube is labeled as “The Fisher”. Made in Germany. Tested in my preamplifier to make sure working as intended with no issues at all.
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1960s 12AX7 ECC83 Tung-Sol Tube Gray Long Plate O Getter TV7 Test NOS TS7-13
1960’s 12AX7 / ECC83 GAP/R Computor Tube. Made In USA. Triode:1 Tested NOS : 48/ 32 Baseline. Triode: 2 Tested NOS: 50/ 32 Baseline. 12AX7 Minimum Range: 32. 12AX7 Nos Range 45 +. Top O Getter.
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12AX7 ECC83 Tung Sol Tubes Ribbed Short Plate NOS Matched Pair. TV7 Test. E-1&2.
12AX7 / ECC83 Tung-Sol Tubes. Made In Russia. 12AX7 Minimum Range: 32. 12AX7 Nos Range 45 +. No universal test result defines NOS. Ribbed Short Plate. NOS tubes fall within the GM range published in the RCA Receiving Tube Manual; variation above/below average is normal.