Material: Steel
Closely wound looped ends make this extension spring an excellent tool for studying motion, mass and potential energy. 
Pack of 200.

Technical Specifications :
Length: 225mm
Diameter: 6mm
Wire: 19 swg approx
Average extension for 200g load: 430mm
Maximum deflection: 750mm

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Teltron Discharge Tubes
The Teltron range of demonstration discharge tubes has been designed to show the properties of the free electron.
The D range is the original Teltron range with connections fixed on the tubes. 
The S range is a newer range with connections on the stand rather than the tubes.

Teltron Diode D
Teltron Tube Holder D allows the coils to be configured in the Helmholtz geometry or to produce magnetic fields aligned vertically, or coaxial, with respect to the tube axis. 
Pair of Helmholtz coils for generating a uniform magnetic field perpendicular to the axis of the Teltron D series tubes. 
The maximum field strength generated by the coils (~ 10 mT) is approximately 300 times weaker than that produced by an MRI machine (~ 3T), which are known to be safe for use by people with medical implants such as pacemakers.

Other equipment for use with the Teltron tubes:
EHT Power Supply
Digital Meter with two shunts included
Shrouded Test Lead Red
Shrouded Test Lead Black

Technical Specifications :
Number of turns: 320
Effective impedance: 6
Max. field strength: approx. 10 mT
Max. continuous current: 1.0 A
Max. momentary current: 10 min @ 1.5 A; 3 min @ 2 A
Connectors: 4-mm sockets

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A general mechanical purpose stop clock with large start and reset triggers for operation. 
Packed in sturdy case with protective foam insert. 
Housed in a black powder-coated metal case with 100mm dial. 

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Teltron Discharge Tubes
The Teltron range of demonstration discharge tubes has been designed to show the properties of the free electron.
The D range is the original Teltron range with connections fixed on the tubes. 
The S range is a newer range with connections on the stand rather than the tubes.

Teltron Diode S
High-vacuum electron tube with thermionic cathode for demonstrating the thermoelectric effect (Edison effect).
Also investigate the characteristics of diodes via the process of rectification. 
Use the tube to investigate the relationship between measured emission current and the voltage applied to the cathode. 
Instructions included.

Other equipment for use with the Teltron tubes :
EHT Power Supply
Shrouded Test Lead Red
Shrouded Test Lead Black
Digital Meter with two shunts included

Technical Specifications :
Anode current: approx. 2 mA at 200 V (Anode)
Max. heater voltage: 7.5 V AC/DC
Max. anode voltage: 500 V

Contact Science Lab for your Educational School Science Lab Equipments. We are best scientific laboratory equipments manufacturer, scientific laboratory equipments supplier, technical educational equipment exporter, technical educational equipment manufacturer, technical educational equipment supplier, technical educational equipments exporter.

Teltron Discharge Tubes
The Teltron range of demonstration discharge tubes has been designed to show the properties of the free electron.
The D range is the original Teltron range with connections fixed on the tubes. 
The S range is a newer range with connections on the stand rather than the tubes.

Teltron Maltese Cross Tube D
High-vacuum electron tube with divergent electron gun aimed at a fluorescent screen partially obscured by a Maltese cross. 
Application of a magnetic field using the Helmholtz Coils allows for students to study the fundamental science of electron optics, such as beam focusing. 
For demonstrating the linear propagation of electrons in the absence of applied electromagnetic fields by projecting the shadow of a Maltese cross onto the fluorescent screen. 
Instructions included.

Other equipment for use with the Teltron tubes :
EHT Power Supply

Technical Specifications :
Anode current: approx. 0.1 mA at 4 kV.
Max. filament voltage: 6.3 V AC
Max. anode voltage: 5 kV

Contact Science Lab for your Educational School Science Lab Equipments. We are best school science lab equipments suppliers in india, school science lab instruments, school science lab instruments exporter, school science lab instruments manufacturer, school scientific equipments, science educational equipment.

Teltron Discharge Tubes
The Teltron range of demonstration discharge tubeshas been designed to show the properties of the freeelectron.
The D range is the original Teltron range with connections fixed on the tubes. 
The S range is a newer range with connections on the stand rather than the tubes.

Other equipment for use with the Teltron tubes :
EHT Power Supply
Digital Meter with two shunts included
Shrouded Test Lead Red
Shrouded Test Lead Black

Teltron Perrin Tube D
Highly evacuated electron tube with focusing electron gun and fluorescent screen inclined relative to the beam axis so that the path of the beam can be seen and the effects of electric and magnetic fields can be studied.

The electron beam can be deflected using two methods :
Electrically using electric field of the built-in plate capacitor
Magnetically using external Helmholtz Coils D. 
Also determine the fundamental electron chargeto- mass ratio (e/m) and study mean electron velocities using field cancellation.

Technical Specifications :
Anode current: approx. 0.1 mA at 4 kV (anode).
Max. filament voltage: 6.3 V AC
Max. anode voltage: 5 kV
Max. capacitor voltage: 500 V

Contact Science Lab for your Educational School Science Lab Equipments. We are best scientific laboratory equipments manufacturer, scientific laboratory equipments supplier, technical educational equipment exporter, technical educational equipment manufacturer, technical educational equipment supplier, technical educational equipments exporter
 

Teltron Discharge Tubes
The Teltron range of demonstration discharge tubes has been designed to show the properties of the free electron.
The D range is the original Teltron range with connections fixed on the tubes. 
The S range is a newer range with connections on the stand rather than the tubes.

Other equipment for use with the Teltron tubes:
EHT Power Supply
Digital Meter with two shunts included
Shrouded Test Lead Red
Shrouded Test Lead Black

Teltron Thomson Tube S
High-vacuum electron tube with high-accuracy electron gun and ruled target phosphorescent screen. 
Determine the fundamental electron charge-to-mass ratio (e/m), study mean electron velocities using field cancellation, and explore electron optics using this tube.

The electron beam trajectory can be manipulated using two methods :
Deflection induced by the electric field of the built-in plate capacitor,
Magnetically using external Helmholtz Coils S.

Technical Specifications :
Max. filament voltage: 6.3 V AC
Max. capacitor voltage: 500 V
Anode current: approx. 0.1 mA at 4 kV (anode).
Max. anode voltage: 5 kV

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A series of semiconducting junction plates are sandwiched between 2 aluminum heat-conducting plates. 
There is a switch on the thermoconverter to alternate the junction plates between the motor fan or a pair of 4mm sockets.
When a temperature difference exists between the 2 sides of the junction plate, electric current is generated to drive a little fan, providing a visual demonstration of the current produced. 
When the 4mm sockets pair are selected and driven with a 5V DC voltage, a temperature difference will be created and conducted by the aluminium plates.

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