{"product_id":"dual-beam-tube-s","title":"Dual Beam Tube S","description":"Experiment Topics: ..\u003cbr\u003eThe following topics can be discussed with this Neon-gas filled, partial-vacuum electron tube: \u003cbr\u003e•  Determination of the specific charge e\/m for tangential injection and perpendicular magnetic field\u003cbr\u003e•  Observation of the spiral path followed by electrons fired axially into a co-axial magnetic field.\u003cbr\u003e\u003cbr\u003eProduct Information: ..\u003cbr\u003eThe dual beam tube is a partly evacuated electron tube, filled with Neon at low pressure and equipped with both axial and perpendicular electron guns. The electron beams are perpendicular to one another and a common deflector plate is provided for both guns. The electron beam source is an oxide cathode heated indirectly via a heating coil. The electron paths show up as a fine, orange beam due to impact excitation of the Neon atoms.\u003cbr\u003eThe dual beam tube can be used to determine the specific charge e\/m from the diameter of the path followed by electrons fired into the tube from a perpendicularly mounted gun with a vertically aligned magnetic field and observation of the spiral path followed by electrons fired axially into a co-axial magnetic field.\u003cbr\u003e\u003cbr\u003eSpecifications: ..\u003cbr\u003eFilament voltage UF :\tmax. 7.5 V AC\/DC\u003cbr\u003eAnode current IA :\tmax. 30 mA\u003cbr\u003eAnode voltage UA :\tMaximum value so that the anode current IA ≤ 30 mA (typical 120-300 V DC)\u003cbr\u003eDeflector voltage:\tmax. 50 V DC\u003cbr\u003eGlass bulb:\t130 mm Ø approx.\u003cbr\u003eTotal length:\t260 mm approx.\u003cbr\u003eGas filling:\tNeon","brand":"3B Scientific Teltron","offers":[{"title":"Default Title","offer_id":49419051237653,"sku":"3BS1000622","price":2251.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0857\/4897\/3845\/files\/U18570_01_1200_1200_Dual-Beam-Tube-S.jpg?v=1761020740","url":"https:\/\/unitedsupplycorp.com\/products\/dual-beam-tube-s","provider":"United Supply Corp.","version":"1.0","type":"link"}