Irwin 4 x D Cell Battery Holder Pack of 10

Description

Code: EBH0004

The Irwin Tapped Battery Holder holds 4 x D (R20) batteries with outputs at 1.5, 3, 4.5 and 6V. Batteries and leads not supplied. Each output has a 4mm socket. Manufactured in the UK from premium strong perspex.

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SettingsIrwin 4 x D Cell Battery Holder Pack of 10 removeResistance Substitution Box removeLamp Brightness Experiment remove24V 21W Small Bayonet Cap Radial Filament Lamp removeNational Grid Pylons Only removeCapacitance Substitution Box remove
NameIrwin 4 x D Cell Battery Holder Pack of 10 removeResistance Substitution Box removeLamp Brightness Experiment remove24V 21W Small Bayonet Cap Radial Filament Lamp removeNational Grid Pylons Only removeCapacitance Substitution Box remove
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Description

Code: ERS8050

A six-decade resistance substitution box designed for use in educational establishments.

Code: ELB8000

Students often think that the brightness of a lamp is only dependent on the current flowing through it. The unit allows the teacher to safely switch a 12V lamp in series with a mains lamp and study the current flow through them.  
Pack of 10 24V 21W Small Bayonet Cap (SBC) Radial Filament Lamps.
Our additional Pylons pack contains 5 thick card sheets which once cut-out produces 5 pylons to be used in conjunction with our National Grid Kit to give your pupils a clearer explanation on how the experiment works.

Code: ECS8100

Our five-decade capacitance substitution box has been specifically designed for the schools market with its clear display and ease of use.
  • Unit will simulate capacitances from 100pF to 9.9999µF in 100pF steps
  • Max. voltage 50V DC
  • The required capacitance is set by a counter with the value displayed in µF, nF and pF
  • Output is via 4mm terminals with 4mm sockets
  • Housed in a sturdy ABS box
Content

Code: EBH0004

The Irwin Tapped Battery Holder holds 4 x D (R20) batteries with outputs at 1.5, 3, 4.5 and 6V. Batteries and leads not supplied. Each output has a 4mm socket. Manufactured in the UK from premium strong perspex.
  • Simulates resistances from 1Ω to 999,999Ω in 1Ω steps
  • The required resistance is set by selecting the correct value from six rotary decade switches which clearly indicate the value selected by the student
  • An additional 1kΩ resistor is provided connected between one of the terminals of the internal resistance and a third terminal so the unit can be used as an accurate potential divider
  • All outputs are on 4mm terminals with 4mm sockets
  • Housed in a tough ABS box with non-slip rubber feet
  • Voltage rating 250V
  • Power rating 600mW
  • Dimensions 110 x 75 x 50mm
  • Designed and manufactured in the UK
This includes kit includes the use of a safety mains lamp socket, which has a built in a switching system that only allows it to be switched on when a lamp is inserted.  We have also included two switches, which must be pressed simultaneously to route the mains current through the low voltage lamp. Furthermore, the switches are sited at opposite ends of the case, requiring two hands to operate them.  However, it must be appreciated that you are working with potentially lethal voltages and currents and therefore extra care should be taken.
  • Supplied with 1 x 240V 100W lamp and 1 x 12V 5W lamp and mains power lead.

Code: OPR1221

Pack of 10 24V 21W Small Bayonet Cap (SBC) Radial Filament Lamps.

Code: ENG1015

Our additional Pylons pack contains 5 thick card sheets which once cut-out produces 5 pylons to be used in conjunction with our National Grid Kit to give your pupils a clearer explanation on how the experiment works.
Technical Details
Voltage rating 50V DC max.
Capacitance range 100pF to 9.9999µF in 100pF steps
Accuracy ±10% per decade
Residual capacitance 40pF
 
WeightN/AN/AN/AN/AN/AN/A
DimensionsN/AN/AN/AN/AN/AN/A
Additional information