This is an EMC 215 tube tester. I tested a 6SN7, 7868, and KT88 tube and it worked. This tester will test 7, 9, and 10 pin miniature, octal, loctal, and 9, 12 pin compactron, and nuvistor tubes.
HP 410B-21-95A RF TEST LEAD ASSEMBLY PROBE - UNUSED - NO TUBE This has no tube. It is unused and in great condition! Please be courteous and pay promptly within 2-3 days.
This listing is for a Thermo Heraeus Fresco 21, Refrigerated Microcentrifuge, 24-Place Rotor, 117V This includes the following: Thermo Heraeus Fresco 21, Refrigerated Microcentrifuge, 24-Place Rotor, 117V (Catalog Number 75002426) 24 Place Rotor 24 x 1.5/2.0mL Rotor with ClickSeal™ Biocontainment Lid (Catalog Number 75003424) (Called in the manual a Microliter 24 x 2 Rotor)
Up for bids these vintage 1950's Do-It-Yourself tube tester guides with TV and Radio tube diagnostics. Guides are for the Test-O-Matic and Quick-Check multi socket tube testing machines that used to be located in hardware and variety stores. Both are tri-fold guides and in good overall condition as shown in the photos.
PAIR LARGE Adjustable Tapped Inductor Coil for Tube Ultrasonic Power Oscillators. Removed from old tube-based power oscillators that operated in the ultrasonic (30-50khz) range. They have multiple taps and connections.
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