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.

KT66 / 7581A RF Parts Beam Power Amplifier Tube Matched Pair (2)

$127.91

Matched pair of RF Parts brand KT66 tubes
Made in China
SKU: KT66-MP-RFP
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KT66 / 7581A RF Parts Beam Power Amplifier Tube

$63.91

Made in China
SKU: KT66-RFP
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7581A/KT66 IEC Beam Power Amplifier (NOS/NIB)

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1-800-RFPARTS (1-800-737-2787)

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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7581A Jan Philips ECG Beam Pentode AF Power-Amplifier (NOS/NIB)

$149.91

NSN #: 5960-00-728-1434

Size: 3.6" High from base bottom to top of Glass envelope, 1.5" diameter

New Old Stock * New In Box * No longer available for export
MFR: Philips / ECG JAN

SKU: 7581A-JAN-ECG
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7581A / KT66

KT66 / 7581A RF Parts Beam Power Amplifier Tube Matched Pair (2)

KT66 / 7581A RF Parts Beam Power Amplifier Tube

7581A/KT66 IEC Beam Power Amplifier (NOS/NIB)

7581A Jan Philips ECG Beam Pentode AF Power-Amplifier (NOS/NIB)

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