60%

NOS Matched Pair Mullard 7189/6BQ5/EL84 O-Getter Blackburn England

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Original price was: $176.00.Current price is: $105.60.

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Brand : Mullard
Country/Region of Manufacture : United Kingdom
Model : 7189 6bq5 el84
Type : Vacuum Tube

Test HEATER FILAMENT TEST: SHORT CIRCUIT, HEATER FILAMENT TEST: OPEN CIRCUIT, HEATER FILAMENT TEST: TOLERANCE CHECK, HEATER CATHODE INSULATION: LEAKAGE, HEATER CATHODE INSULATION: SHORT CIRCUIT, TESTS FOR HEATER CURRENT ABNORMALITIES, AMPLIFICATION FACTOR, VOLTAGE GAIN, POWER GAIN, SCREEN GRID TEST, MUTUAL CONDUCTANCE TEST, DUAL TEST FOR DOUBLE TRIODES, EMISSION INTER ELECTRODE LEAKAGE, INTER ELECTRODE SHORT CIRCUIT, FLASH-OVER (ARC DETECTION, HIGH VOLTAGE BREAKDOWN), GAS IONISATION TEST Tested on my Orange VT1000 excellent NOS TUBES . Lot of headroom with a matched 10 gain modern offerings are usually an 8 gain and nothing sounds like Mullards period!

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