7581A / KT66
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)
1-800-RFPARTS (1-800-737-2787)
In Stock
Size: 3.68" High from base bottom to top of Glass envelope,
New Old Stock * New In Box
MFR: International Servicemaster
SKU: 7581A
KT66 / 7581A RF Parts Beam Power Amplifier Tube Matched Pair (2)
In Stock
Matched pair of RF Parts brand KT66 tubes
Made in China
SKU: KT66-MP-RFP
7581A Jan Philips ECG Beam Pentode AF Power-Amplifier (NOS/NIB)
In Stock
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
KT66 / 7581A RF Parts Beam Power Amplifier Tube
In Stock
Made in China
SKU: KT66-RFP
7581A General Electric Beam Pentode AF Power-Amplifier (NOS/NIB)
Out of Stock
- NSN #: 5960-00-728-1434
- Can replace KT66
- Size: 3.25" High from base bottom to top of Glass envelope, 1.5" diameter
New Old Stock * New In Box * No longer available for export
MFR: General Electric Company
SKU: 7581A-GE
KT66 International Beam Power Amplifier Japan (NOS/NIB)
1-800-RFPARTS (1-800-737-2787)
In Stock
Designed for use in the output stage of an A.F. amplifier, or as a series valve in a stabilized power supply.
- Maximum anode dissipation rating of 30 Watts.
- Size: 3-5/16" High from base bottom to top of Glass envelope,
New Old Stock * New In Box * No longer available for export
MFR: International Servicemaster
Made in Japan
SKU: KT66-INTER
7581A Realistic Beam Power Amplifier (NOS/NIB)
1-800-RFPARTS (1-800-737-2787)
In Stock
Size: 3-5/8" High from base bottom to top of Glass envelope
New Old Stock * New In Box * No longer available for export
MFR: Realistic
Made in Germany
SKU: 7581A-REAL
