| Description |
Class set of 15 Capacitance Substitution Boxes. The IPC Capacitance Substitution Box (IPC-5861-X) provides the easily selection of 12 preferred value capacitors, ranging from 100pF to 0.47µF.
The values range from: 100pF, 220pF, 470pF, 1nF, 2n2, 4n7, 10nF, 22nF, 47nF, 0.1µF, 0.22µF and 0.47µF. All the capacitors offer a maximum voltage rating of 50V (AC or DC), with actual capacitance value tolerances of ±5% to ±10%. The unit is housed in a robust ABS plastic case with rotary selector switch and a pair of 4mm connection sockets.
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Pack of 10 12V 21W Small Bayonet Cap (SBC) Radial Filament Lamps.
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Our compact Powerlock power supply now comes supplied in a 4 pack with a Gratnells deep tray for ease of storage. Offering 2, 4, 6, 8, 10, and 12 volts at currents of up to 5A. Both dc and ac outputs may be used simultaneously up to the rated output. The output is protected by a push button cut-out. The unit is 2A fused on the back panel and comes complete with a moulded mains lead and plug. Supplied with 2 keys.
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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
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BERT is a simple way of introducing electrical resistance and resistivity to a class. It consists of a circuit board that may be drawn on using the supplied pencil. Connecting the two sides of the board together by a pencil line gives a conducting track and the LED lights. The brightness of the LED gives an indication of the resistance of the path. Drawing the line thicker decreases the resistance, as does shortening the path. Resistances in parallel may be studied and a “volume control” simply made.
BERT may also be used to test various materials to see whether they are conductors or insulators. Liquids and pastes may also be tested. The conductivity of the class may be studied as well as how a switch works. When you are finished the pencil lines may be removed with the supplied eraser.
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This instrument (IPC-1402-P) is designed as a general purpose laboratory power supply. It has two isolated outputs which operate independently of each other.
The AC output is selected by means of a 4-position switch on the front panel. Selected voltages are 2, 4, 6 and 12V at 4A continuously, or up to 5A for periods of 1 hour. The output is supplied via a pair of 4mm sockets on the front panel colour coded white. The output is protected from overload or short circuit by a current sensing circuit breaker mounted on the front panel.
The DC output is smoothed and regulated and is continuously variable from 0V to 12V at currents up to 3A. Voltage ripple typically less than 50mV. The output is supplied via a pair of 4mm sockets on the front panel colour coded red (positive) and black (negative). The output is protected from short circuit or overload by an electronic regulator.
The outputs may be used simultaneously as long as the combined load does not exceed 3A.
Power on is indicated on the front panel by a green LED. An illuminated on/off switch is mounted on the rear panel adjacent to a fused IEC mains inlet. Enclosed in a robust metal case with a durable powder coated finish. Supplied with detachable mains lead and instructions.
A pair of graphs showing how the output voltage of this power supply varies as the current supplied is increased is included in the instruction leaflet for this instrument.
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| Content |
Description : Capacitance Substitution Box
Part Number : IPC-5861-X
Electrical Supply : 50VAC/DC Maximum
Dimensions : 75 x 100 x 40mm
Mass : 0.15kg
Capacitance Tolerance : ±5% to ±10%
Electrical Connections : 4mm Sockets
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Pack of 10 12V 21W Small Bayonet Cap (SBC) Radial Filament Lamps.
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- A robust power supply for powering laboratory experiments.
- Heavy duty toroid transformer
- Small footprint - 4 units fit in a Gratnells deep tray
- Powder coated steel case
- Switched output of 2V, 4V, 6V, 8V, 10V and 12V ac/dc controlled by a key lock
- Two keys supplied with each Powerlock. Common key profile – any key fits any Powerlock
- Total output current of 5A
- AC and DC outputs may be used simultaneously up to rated current
- Colour coded 4mm sockets
- Push button cut-out
- Manufactured in the UK
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Technical Details
| Voltage rating |
50V DC max. |
| Capacitance range |
100pF to 9.9999µF in 100pF steps |
| Accuracy |
±10% per decade |
| Residual capacitance |
40pF |
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A stunningly effective way of teaching the basics of electrical resistance.
The kit comprises of:
- 1 x BERT circuit board
- 1 x PP3 battery
- 1 x 3B pencil
- 1 x crocodile clip connecting lead
- 1 x eraser
- 1 x full set of teaching notes.
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Description: Dual Output PSU (12VAC/12VDC)
Part Number: IPC-1402-P
Electrical Supply: 220-240VAC, 50-60Hz
Dimensions: 179 x 190 x 85mm overall
Mass: 2.9kg
AC Output Voltage Range: 2, 4, 6 and 12VAC
Maximum AC Output Current: 4A (5A upto 1 hour)
DC Output Voltage Range: 0 to 12VDC
Maximum DC Output Current: 3A
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Language:
English
