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Auto Transformer
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Auto Transformer

(HL-12001 )

Continuously variable voltage auto transformer, protected type.

Comprises a torridly wound transformer with a continuously variable output voltage 0 - 260 volts AC. Steplessly under full load. Input 220 to 240 volts AC, 50 Hz. In stout metal case mounted on a metal base with mains cable.

Type Capacity(Amps)
1 2
2 4
3 8
4 10
5 15

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Banana Plugs
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Banana Plugs

(HL-12002 )

4mm Pin, 18mm long spring insert and hard plastic body. Overall lenght of plug 40mm.


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Banana Plugs Socket
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Banana Plugs Socket

(HL-12003 )

Moulded hard Body,threaded with fixing nut. Plated brass insert with solder pin.

Require 8mm dia panel hole, maximum panel thickness 5mm.

a) Black b) Red c) Yellow d) green


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Capacitance Sunstitution Box
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Capacitance Sunstitution Box

(HL-12004 )

Capacitance substitution box ideal for use in industrial and educational environments.

Unit will simulate capacitances from 100pF to 0.47F in steps ratio of 1:2


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Demonstration Dynamo
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Demonstration Dynamo

(HL-12005 )

This model uses the same basic assembly as the electric motor, mounted on a base plate which also carries a hand drive pulley 120 mm in diameter coupled to the smaller dynamo pulley by a rubber belt. Electric output is via a pair of 4 mm socket & a light emitting diode is provided as simple output indicator. The model may also be used as motor on a 4 to 8 volts DC supply.


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Demonstration Dynamo A.C.
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Demonstration Dynamo A.c.

(HL-12006 )

A simple demonstration of a Dynamo Model mounted on a wooden base. Hand driven by a gear. Simplified open frame construction which can be readily understood without detriments to its essential similarity to real machine. A 2 pole armature wound by enamelled copper wire to rotate in U shape magnet in pivot. While in rotation process through the gear wheel by hand, the bulb provided glows.


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Demonstration Dynamo D.C.
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Demonstration Dynamo D.c.

(HL-12007 )

A simple demonstration of a Dynamo Model mounted on a wooden base. Hand driven by a gear. Simplified open frame construction which can be readily understood without detriments to its essential similarity to real machine. A 2 pole armature wound by enamelled copper wire to rotate in U shape magnet in pivot. While in rotation process through the gear wheel by hand, the bulb provided glows.


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Demonstration Dynamo A.C. and D.C.
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Demonstration Dynamo A.c. And D.c.

(HL-12008 )

A simple dynamo model to differentiate AC from DC. Mounted on a wooden base. Two bulbs are provided for AC & DC current(s). The model is hand driven & when operated, the AC bulb shows flickering light to indicate AC current while the other bulb glows fully indicating DC current.


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Lampholder
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Lampholder

(HL-12009 )

Suitable for mounting screw threaded type MES bulb. Round base with holes for screw mounting.


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Leads
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Leads

(HL-12010 )

Insulated, PVC coated, with one end crocodile clip and at the other end banana plug.


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Digital Panel Meter
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Digital Panel Meter

(HL-12011 )

Digital Meter for general purpose laboratory use housed in tough case use of a 3 digit cover most of the ranges. Displays 13 mm characters; operates on mains with accuracy 0.3% typical. Linearity 0.2% typica. Available in ranges from 1.999mA AC to 199.9mV DC


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Multimeter Digital LCD - Deluxe
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Multimeter Digital Lcd - Deluxe

(HL-12012 )

DC voltage upto 1000 V in five ranges; AC voltage upto 750 V in five ranges; DC current upto 10 A in five ranges; AC current upto 10 A in five ranges. Resistance upto 200M ohms in seven ranges, with buzzer.


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Coil 120 Turns
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Coil 120 Turns

(HL-12013 )

Each centre hole coil is wound on a plastic former & is provided with 4 mm socketed terminals.

The coil fits onto a double C core, provides a suitable transformer for operation from a low voltage AC supply. In addition, it provides a useful electromagnet if used on one half of a C core.


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Coil 2400 Turns
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Coil 2400 Turns

(HL-12014 )

Each centre hole coil is wound on a plastic former & is provided with 4 mm socketed terminals.

The coil fits onto a double C core, provides a suitable transformer for operation from a low voltage AC supply. In addition, it provides a useful electromagnet if used on one half of a C core.


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Coil 240 Turns
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Coil 240 Turns

(HL-12015 )

Wound on a plastic bobbin to fit a standard C core. The coil is centre hole & provided with 3 mm socketed terminals.


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