Bottom price Spectrum Tube - Geissler Discharge Tubes 6pcs/set with Stand Wand – Lianying
Bottom price Spectrum Tube - Geissler Discharge Tubes 6pcs/set with Stand Wand – Lianying Detail:
- Place of Origin:
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Zhejiang, China
- Brand Name:
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LY
- Model Number:
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J2451
- Product Name:
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spectrum tubes for observing the emission spectrum of gas
- Material:
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Glass
- Color:
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Transparent
- Condition:
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New
- Shape:
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Rectangle
- Usage:
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Students Understanding
- Subject:
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Physics
- Warranty:
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1year
- End User:
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Senior School
- Certificate:
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CE/ISO9001
J2451
Geissler Discharge tubes
Description:
This set of 6 premium Geissler tubes is designed to demonstrate the differing discharge characteristics of a gas discharge tube under varying degrees of vacuum. These large Geissler tubes measure approximately 16″ / 40cm in length and 1″ / 2.5cm in diameter,having six tubes with pressures of 40mm., 10mm., 6mm., 2mm., 0.1mm. and 0.001 mm. of mercury, marked on respective tubes The cathode is disc shaped and the anode is pointed. On passing current, each tube shows a different nature of discharge and also different glow at cathode. All tubes are clearly identified with degree of vacuum in mm Hg and include the following:
40mm Hg Violet streamers appear between electrodes
10mm Hg A pink glow fills the tube, concentrated around the anode
3mm Hg Discharge becomes faint blue, Faraday’s dark space appears
1mm Hg Faraday’s dark space expands
0.10mm Hg Cathode begins to fluoresce
0.02mm Hg Cathode rays emerge, causing the tube sides to fluoresce
Both electrodes on these premium tubes have a full glass envelope. A plastic stand, insulated electrode and connecting wire with clip are included (as shown in product photo). A 50mm induction coil is the recommended power supply.
Pack/ set 6 with stand size:35*15*48 Weight: 1.2KGS
| Ql: What certificates have you obtained? Al: We got IS014001:2004. ISO9001:2008, OHSAS18001:2007 and CE certificates. |
| Q2: What is the payment term? A2: We accept T/T, 30% deposit & 70% balance payment before shipping, and Western Union. |
| Q3: Are you a factory or trading company? A3: We are a Industry and trade integration enterprise with a history of 30 years. |
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Q4: What products do your factory produce? mechanics, biology and etc. |
| Q5: Do you provide OEM services? A5: Yes. we do. |
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Q6: Do you procure educational equipments for clients?Will it raise purchasing costs? in China and has set up a joint marketing network.The product line contains almost all teaching instruments, and we are very competitive in price |
| Q7:What countries do you export to? A7:we export to Switzerhland,India,Malaysia,America,Japan,Canada,Austrilia,North africa and many other countries. |
Product detail pictures:
Related Product Guide:
We believe that long time period partnership is a result of top of the range, value added services, rich expertise and personal contact for Bottom price Spectrum Tube - Geissler Discharge Tubes 6pcs/set with Stand Wand – Lianying , The product will supply to all over the world, such as: France, Slovenia, America, By adhering to the principle of "human oriented, winning by quality", our company sincerely welcomes merchants from at home and abroad to visit us, talk business with us and jointly create a brilliant future.
By Louise from Los Angeles - 2017.02.28 14:19
In our cooperated wholesalers, this company has the best quality and reasonable price, they are our first choice.
By Mary from Curacao - 2017.03.28 16:34
