Teltron Tube - Planar Diode

Teltron Tube - Planar Diode
B8A49505

Product code: B8A49505

Direct Delivery – up to 8 weeks. Delays Possible Due To COVID-19
GBP391
GBP469.2 inc VAT

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

The diode is used to show the basic thermionic effects in vacuum tubes, including:

  • Current flow between an incandescent filament and a cold electrode (the Edison effect).
  • Determination of e/m by the displacement method using Helmholtz coils.
  • Characteristic anode current/ anode voltage curves for different filament temperatures.
  • Application of a diode as a rectifier.

The diode consists of a basic glass spherical body with a cylindrical neck, containing a tungsten filament with 4mm connection sockets in the plastic cap on the neck and a circular anode plate connected to a 4mm plug connection on the sphere.

  • Operating instructions supplied.

Technical Specifications:

  • Maximum filament voltage: =7.5 V AC/DC
  • Maximum anode voltage: 500 V
  • Anode current: 2.5mA at 300V

Requires the following products to operate:

  • B8A49463 - Universal Stand
  • B8R02653 - EHT Power Supply - to power the anode
  • B8R07149 - EHT Experiment Leads (3 required)
  • B8G85458 - Bench Power Supply - to power the filament
  • B8R06545 - 4mm Leads
  • B8A49475 - Helmholtz Coils (Optional)
  • A-Level Physics: Atomic Physics (Thermionic effects in vacuum tubes, the Edison effect)

Further Information

Anode Current
2.5mA at 300V
Brand
UK 3B Scientific
Curriculum Link
Atomic Physics
Key Stage Suitability
Key Stage 5+
Maximum Anode Voltage
500 V
Maximum Filament Voltage
Less than or equal to 7.5 V AC/DC
Product Type
Teltron Tube

Documents

GBP391
GBP469.2 inc VAT
Direct Delivery – up to 8 weeks. Delays Possible Due To COVID-19

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

The diode is used to show the basic thermionic effects in vacuum tubes, including:

  • Current flow between an incandescent filament and a cold electrode (the Edison effect).
  • Determination of e/m by the displacement method using Helmholtz coils.
  • Characteristic anode current/ anode voltage curves for different filament temperatures.
  • Application of a diode as a rectifier.

The diode consists of a basic glass spherical body with a cylindrical neck, containing a tungsten filament with 4mm connection sockets in the plastic cap on the neck and a circular anode plate connected to a 4mm plug connection on the sphere.

  • Operating instructions supplied.

Technical Specifications:

  • Maximum filament voltage: =7.5 V AC/DC
  • Maximum anode voltage: 500 V
  • Anode current: 2.5mA at 300V

Requires the following products to operate:

  • B8A49463 - Universal Stand
  • B8R02653 - EHT Power Supply - to power the anode
  • B8R07149 - EHT Experiment Leads (3 required)
  • B8G85458 - Bench Power Supply - to power the filament
  • B8R06545 - 4mm Leads
  • B8A49475 - Helmholtz Coils (Optional)
  • A-Level Physics: Atomic Physics (Thermionic effects in vacuum tubes, the Edison effect)

Further Information

Anode Current
2.5mA at 300V
Brand
UK 3B Scientific
Curriculum Link
Atomic Physics
Key Stage Suitability
Key Stage 5+
Maximum Anode Voltage
500 V
Maximum Filament Voltage
Less than or equal to 7.5 V AC/DC
Product Type
Teltron Tube

Documents

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