Tightly Matched Pair. ‘Tightly Matched’ I consider to be within 2%. ‘Matched’ refers to comparing the gm test results between the lowest to the highest of the identical sections of a set of tubes. ‘Matched’ I consider to be within 10%.
Tightly Matched Pair 6BQ5 unbranded 2 getter posts Vacuum Tubes, TV-7D Tested
Tightly Matched Pair. ‘Tightly Matched’ I consider to be within 2%. ‘Matched’ refers to comparing the gm test results between the lowest to the highest of the identical sections of a set of tubes. ‘Matched’ I consider to be within 10%.
Pair 6BQ5 unbranded smoked glass/disc getter Vacuum Tubes, TV-7D Tested
Vacuum Tubes. ‘Matched’ refers to comparing the gm test results between the lowest to the highest of the identical sections of a set of tubes. ‘Matched’ I consider to be within 10%. Clean tubes will radiate heat better & operate cooler.
Lot of 5 Unbranded & GE 6BQ5 Tubes All Tested and Good
*PREMIUM* Matched Quad (YELLOW TIP) 1963 Raytheon 6BQ5 Tubes Amplitrex Tested
I just removed these tubes from their original amplifier last week. They were placed in a Baldwin organ in 1963 and never touched until I removed them. Baldwin only used the best tubes in their organs and you will not find any better tubes than these.
Matched Pair 6BQ5 GE unbranded Vacuum Tubes, TV-7D Tested – will combine ship
‘Matched’ refers to comparing the gm test results between the lowest to the highest of the identical sections of a set of tubes. ‘Matched’ I consider to be within 10%. Vacuum Tubes. Matched Pair. ‘Closely Matched’ I consider to be within about 5%.
Matched Pair 6BQ5 Sylvania & unbranded Vacuum Tubes, TV-7D Tested – will combine
‘Matched’ refers to comparing the gm test results between the lowest to the highest of the identical sections of a set of tubes. ‘Matched’ I consider to be within 10%. Vacuum Tubes. ‘Closely Matched’ I consider to be within about 5%.
Pair 6BQ5 Raytheon 2 getter posts Vacuum Tubes, TV-7D Tested – will combine ship
Vacuum Tubes. ‘Matched’ refers to comparing the gm test results between the lowest to the highest of the identical sections of a set of tubes. ‘Matched’ I consider to be within 10%. Clean tubes will radiate heat better & operate cooler.
1960’s Japan 6BQ5 Fat Round Plate Matched Pair Test Strong Toshiba Matsushita
Test 8600 (36.8 ma) & 8800 (38.3 ma) where 5500 is good at 250-V in a Triplett 3444/ Westmore 501.