3b-scientific Teltron Diode D User Manual download pdf

3B SCIENTIFIC

PHYSICS

Diode D 1000646

Instruction sheet

08/12 ALF

1 4-mm plug for connect-

ing anode

2 .Anode

3 Boss

4 Cathode filament

5 Filament backing plate

6 4-mm sockets for

cathode and filament

1. Safety instructions

Hot cathode tubes are thin-walled, highly

evacuated glass tubes. Treat them carefully as

there is a risk of implosion.

• Do not subject the tube to mechanical

stresses.

• Do not subject the connection leads to any

tension.

• The tube may only be used with tube holder

D (1008507).

If voltage or current is too high or the cathode is

at the wrong temperature, it can lead to the tube

becoming destroyed.

• Do not exceed the stated operating parameters.

When the tube is in operation, the terminals of

the tube may be at high voltages with which it is

dangerous to come into contact.

• Only change circuits with power supply

equipment switched off.

• Only exchange tubes with power supply

equipment switched off.

When the tube is in operation, the stock of the

tube may get hot.

• Allow the tube to cool before dismantling.

The compliance with the EC directive on elec-

tromagnetic compatibility is only guaranteed

when using the recommended power supplies.

2. Description

The diode allows basic experiments to be per-

formed on the Edison effect (thermionic effect),

demonstrates how the emission current de-

pends on the power supplied to heat the hot

cathode, allows recording diode characteristics

and shows the use of the diode as a rectifier.

The diode is a highly evacuated tube with a pure

tungsten heater filament (cathode) and a circular

metal plate (anode) inside a clear glass bulb.

The cathode filament and the anode plate are

parallel to one another. This planar configuration

corresponds to the conventional symbol for a

diode. A circular metal plate is attached to one

of the filament leads. This ensures that the elec-

tric field between the anode and cathode is uni-

form.

1 2 3 4

Summary of Contents

Page 1 - PHYSICS

3B SCIENTIFIC® PHYSICS 1 Diode D 1000646 Instruction sheet 08/12 ALF 4213356 1 4-mm plug for connect-ing anode 2 .Anode 3 Boss 4 Cathode

Page 2

2 3 Technical data Filament voltage: ≤ 7.5 V Filament current: ≤ 3 A approx. Anode voltage: max. 500 V Anode current: 2.5 mA typical at UA = 3

Page 3 - DC POWER SUPPLY 0 ... 500 V

3 DC POWER SUPPLY 0 ... 500 V0 ... 500 V 0 ... 50 VVV VV01002003004005000 ... 12 V0 ... 8 V0102030405002468036912UFUAIA Fig. 1 Determining dependenc

Page 4 - SMART AUTOSET

A TELTRON Product from UK3B Scientific Ltd. ▪ Suite 1 Formal House, Oldmixon Crescent ▪ Weston-super-Mare Somerset BS24 9AY ▪ Tel 0044 (0)1934 425333

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3b-scientific Teltron Diode D User Manual

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Summary of Contents

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