3b-scientific Teltron Triode S, Neon-filled User Manual download pdf

3B SCIENTIFIC

PHYSICS

Gas Triode S with Ne-Filling 1000619

Instruction sheet

12/12 ALF

1 4-mm plug for connect-

ing anode

2 Anode

3 Grid

4 Heater filament

5 Cathode plate

6 Connection pins

7 Guide pin

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

S (1014525).

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 use safety experiment leads for con-

necting circuits.

• Only change circuits with power supply

equipment switched off.

• Only exchange tubes with power supply

equipment switched off.

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 parame-

ters.

When the tube is in operation, the stock of the

tube may get hot.

• Allow the tube to cool before dismantling.

Use of the equipment over long periods and

involving hefty gas discharges can cause loss of

material from the electrodes, which is deposited

on the glass of the tube itself resulting in darken-

ing of the surface.

The compliance with the EC directive on elec-

tromagnetic compatibility is only guaranteed

when using the recommended power supplies.

2. Description

The gas triode allows recording of the I

– U

characteristic of a thyratron, observation of ex-

cited and non-excited discharge and of the dis-

continuous transfer of energy by helium atoms

in inelastic collision with free electrons.

The gas triode is a neon-filled tube with a pure

tungsten heater filament (cathode) and a round

metal plate (anode) with a wire grid between

them, all inside a clear glass bulb. The cathode,

anode and grid are all aligned parallel to one

another. This planar configuration corresponds

to the conventional symbol for a triode. A circu-

lar metal plate attached as a backing to the fila-

ment ensures that the electric field between the

anode and cathode is uniform.

1 2 3 4

Summary of Contents

Page 1 - PHYSICS

3B SCIENTIFIC® PHYSICS 1 Gas Triode S with Ne-Filling 1000619 Instruction sheet 12/12 ALF 7654321 1 4-mm plug for connect-ing anode 2 Anode

Page 2

2 3. Technical data Gas filling: Neon Filament voltage: ≤ 7.5 V AC/DC Anode voltage: max. 400 V DC max. Anode current: 10 mA typ. at Ua = 300 V G

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

3 DC POWER SUPPLY 0 ... 500 V0 ... 500 V 0 ... 50 VVV VV01002003004005000 ... 12 V0 ... 8 V0102030405002468036912UFUAIAIG Fig. 1 Evidence for positi

Page 4

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 Triode S, Neon-filled User Manual

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