7581A / KT66
The 7581/A tube is an industrial strength version of the 6L6GC which is also said to be the American equivalent to the British KT-66. The ratings 7581 are roughly the same as the 6L6GC while the 7581A has higher ratings. The 7581 has a plate voltage rating of 500 V--35 watts (5 watts more than the 6L6GC) and a screen rating of 450V--5 watts.

7581A/KT66 IEC Beam Power Amplifier (NOS/NIB)
In Stock
$69.91
Size: 3.68" High from base bottom to top of Glass envelope,
New Old Stock * New In Box
MFR: International Servicemaster
SKU: 7581A
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