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6AU6A EF94 INTERNATIONAL SERVICEMASTER Tube Not Tested No Box
No box Not tested From estate sale 1224
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Lot Of 4: Tube 6AU6A 6AU6 EF94 International (2)Rad-Tel (1)delta Tube T11 T19
The product is a lot of 4 vintage electron tubes including 6AU6A 6AU6, EF94, and T11 models from various manufacturers such as International Servicemaster, Rad-Tel, and Delta. These tubes...
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6GV8 ECL85 International Servicemaster NOS Vacuum Tube, B&K 747B Tested
6GV8 ECL85. International Servicemaster. Vacuum Tube. sections of a single tube. Within 3% I consider to be 'Balanced'. Tested at 98/84. Clean tubes will radiate heat better & operate...
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International Service Master 6GV8/ECL85
The International Service Master 6GV8/ECL85 is a vintage electronic component, specifically a vacuum tube, manufactured by International Servicemaster. Known for its high-quality products, this particular model is the ECL85,...
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International 6EH7 EF184 6EJ7 EF183 50C5 12AU7A ECC82 Vacuum Amplifier Tube
For sale are 6 New (nos) International tubes. You will get all 6 as shown. The tubes test good.
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SST 300 INTERNATIONAL SERVICEMASTER Italy HiFi Ham Radio Amp Vacuum Tube NOS
I do my best at research and use fair pricing based on what I find out there. I have made mistakes before and in the past and have corrected...
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One International 5Z3 Tube / Etracer Tested STRONG & BALANCED/ In Box / ITALY
Tested on etracer computerized tube tester. ONE International Servicemaster 5Z3 tube. Made in ITALY 1964. 109.2% / 98.2% mA plate current. Bottom disc O getter.
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Westinghouse Continental Long Bottle 6SN7 GTB NOS NIB Amp Radio Preamp Tube Rare
This tube is marked japan on the stamp on the side of the tube has traditional Westinghouse Continental logo. So this tube is a 2 hole long plate tube...
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International C Servicemaster Electron Tube 35W4 / HY90 Vacuum Tube Made Holland
The product is an International Servicemaster HY90 vacuum tube, made in the Netherlands. This vintage electron tube is a 35W4 model, known for its quality and durability in consumer...