(4) NOS/NIB JAN Sylvania 6SN7WGT/A pre-amp tubes. Dates: 1955, 1958, 1964 and 1969. Brown miconal bases. Black off-set T plates. Round getter. Test results from a rebuilt, calibrated correctly, Hickok 539C tester.
Minimum transconductance value: 1640Tube 1: 1955 6SN7WGT Triode 1: 3000 @ 7.71ma Triode 2: 3000 @ 7.51ma Tube 2: 1958 6SN7WGTA Triode 1: 2950 @ 8.13ma Triode 2: 2800 @ 7.83ma Tube 3: 1964 6SN7WGTA Triode 1: 2900 @ 7.00ma Triode 2: 2850 @ 6.86ma Tube 4: 1969 6SN7WGTA Triode 1: 3100 @ 8.77ma Triode 2: 2900 @ 7.00ma Price is $40.00 each. Payment by Personal check, MO, Cashiers check. NO PayPal!
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