Ei
Ei tubes are made at the Ei factory in Niš, Yugoslavia. This vacuum tube factory was founded in 1951 and employed the use of Philips technology. In the 50'sproduction was mainly geared towards radio and TV tubes. Today, Ei specializes in the production of vacuum audio tube types and the quality of their tubes is second to none.
 2 MATCHED BALANCED 12AX7 ECC83 Ei TUBES Silver Bullets  US $84.99
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 1 NOS Tube ECC82 12AU7 PHILIPS EI Tested US $6.00
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 Pair Ei 12BH7A Tubes Unused in Boxes US $.99
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 Ei YUGO TESTS NOS 12AX7 ECC83 SMOOTH PLATE AUDIO TUBE US $10.01
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 1Pcs NOS EI 6CA7 EL34 OO Getter US $65.00
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 PCC88 Ei PHILIPS NIB TESTED MATCHED PAIR ECC88 6DJ8 US $29.99
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 Ei White box 12AX7 ECC83 Yugoslovia NIB NOS US $1.95
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 PCC88 SIEMENS Ei ECC88 6DJ8 LOT OF 2 US $24.99
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 Pair of Ei 12AX7 ECC83 Tubes NOS NIB Pre war Yugoslavia US $60.00
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 MATCHED PAIR EI EL84 E 6BQ5 VACUUM TUBES AMP AMPLIFIER US $.99
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 PAIR ECC83 Ei 12AX7 ECC 83 Tube TESTED NOS NIB RARE US $1.00
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 Very High Gain NOS EL84 6BQ5 Ei Matched Tubes Vox AC30 US $65.00
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 NOS ECC82 12AU7 Ei Philips Tube Vox AC30 US $40.00
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 MATCHED PAIR NOS Ei Yugoslavia ECC83 12AX7 UNUSED TEST US $79.99
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 MATCHED PAIR NOS Ei Yugoslavia EF86 UNUSED TEST US $49.99
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 3 EI Phillips Flat Smooth Plate 12AX7 ECC83 Tubes NICE US $89.99
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 2 NOS NIB EI ECC82 12AU7 tubes long smooth plate US $71.99
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 EI KT90 Matched Pair Yugo Tubes NOS KT88 6550 EL34 US $385.00
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 PCC88 Ei PHILIPS TYPE TUBES NOS 100 PIECES US $649.00
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 2 NOS NIB EI EC900 6HA5 tubes US $17.99
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 EI KT90 OO getter Nish Yugoslavia Serbia US $175.00
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 PCC88 Ei PHILIPS TYPE TUBES NOS PAIR US $19.00
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 EI ECC 83 Audio valve US $27.95
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 4x Ei PL519 40KG6A Nish Yugoslavia Serbia US $99.00
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 MATCHED PAIR 12AX7 ECC83 NOS Ei TUBES Silver Bullets US $69.99
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 TUBE PCF801 8GJ7 6 tubes Ei NOS MIB YUGOSLAVIA US $12.00
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 PCC88 Ei PHILIPS TYPE TUBES NOS 10 PIECES US $79.00
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 1 Quad EI 6CW5 EL86 Tubes Matched Balanced 100 tested US $34.90
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 Matched Pair Ei Smooth Plate ECC83 12AX7 Tubes US $40.00
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 4x Transformer Top Cap TopCover for EI 76 96 114 US $8.00
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