Audio Tubes
RF Parts Company has a good selection of Vintage Audio tubes from Various manufacturers in the USA and Overseas. Please check with our Sales Staff if you do not see what you are looking for on our website. We have many Vintage tubes available and can do our best to see if in our stock. Thanks.
Tube Basics & Questions? See Here
Please choose from the following AUDIO TUBES Sub-Catagory choices:
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)
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
Add to Cart
7581A Realistic Beam Power Amplifier (NOS/NIB)
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
Add to Cart
7581A/KT66 IEC Beam Power Amplifier (NOS/NIB)
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
Add to Cart
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
Add to Cart