Here is a nice tube tester I ran across the other day, a mutual conductance B&K 707 model. It is tested, at least partially. I checked it with a 12au7 and my 6L6 reference tube (pic is of the 6L6 testing.) Test results were as expected (6L6 reference tube = 100% of new) and close to my calibrated Hickok 547A.
Flexicare Single Use Laryngeal Mask Airway LarySeal Flexi LarySeal Flexi is specially designed for use in ophthalmic, ENT, dental and other head and neck surgeries. The construction of the main tube allows it to be positioned well away from the surgical field, improving surgical access without compromising the seal. The LarySeal Flexi main tube is reinforced to avoid kinking and eliminate the risk of airway tube occlusion.
THIS IS A NICE GOODWAY RAM-5-SF TUBE CLEANING SYSTEM Shipping on this item is 138.00 to the lower 48 states. If you are from overseas or Alaska or Hawaii please email me for a shipping quote. Please understand if it is going out of the country it can take between 3 and 6 weeks depending on customs.
This is a ludlum model 2 geiger counter with a CDV-700 GM tube probe and a long life on board radioactive check source. It looks rough and had some minor corrosion in the battery compartment as pictured, but other than that it has been tested and works well. This meter features adjustable HV from 400 to about 1500V and works with a wide variety of geiger and scintillation detectors- IT EVEN WORKS WITH MY EXTREMELY RARE NEUTRON DETECTOR TUBES!.
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