Rheostat , Sliding Contact
" Sales Code PETC101"

For Use As Series Resistance Or Potential Divider.Comprises Of Insulator Tube,Wounded Oxidised Eureka Wire Mounted On Bakelite Feets , With Laminated Brush Contacts Of Phosphor Bronze Strip,Nickel Plated Rod & 4 Mm Socket Terminals.

Amps Length , Cm Amps
15 20 25 30 35 40 45 50
14 0.5 0.8 1.1 1.4 1.7 2.0 2.3 2.6 14
12 0.9 1.4 1.9 2.4 2.8 3.3 3.8 4.6 12
10 1.4 2.0 2.8 3.5 4.3 5.0 5.8 6.5 10
7 3.0 4.0 5.0 6.5 8.0 9.0 10.0 11.0 7
6 3.5 5.5 7.5 9.0 11.0 13.0 15.0 17.0 6
5 5 8 11 14 17 20 23.0 26 5
...
4.2 10 15 20 25 30 35 40 45 4.2
3.3 14 20 28 34 42 48 58 64 3.3
2.8 19 28 38 48 57 66 76 86 2.8
2.3 26 41 56 71 86 102 114 128 2.3
...
1.8 45 70 95 115 140 160 185 210 1.8
1.6 64 96 125 160 190 225 250 290 1.6
1.4 80 120 160 200 245 285 325 360 1.4
1.2 115 170 230 290 345 400 450 500 1.2
1.0 150 225 300 375 450 525 600 675 1.0
0.8 200 300 400 500 600 700 800 925 0.8
0.6 350 500 675 850 1000 1150 1350 1500 0.6
0.5 500 750 1000 1250 1500 1800 2050 2300 0.5
0.4 840 1250 1650 2070 2500 2900 3350 3700 0.4
0.3 1400 2100 2900 3600 4300 5100 6000 6800 0.3

Rheostat With Perforated Cover
" Sales Code PETC102"
It Has An Perforated Cover For Safety. And Values Same As Above.

Ammeter
" Sales Code PETC103"

Moving Coil , D.C. In Plastic Case , Diameter 65 Mm , Fitted On Stand With 4 Mm Socket Terminals , Scale 50 Mm. Accuracy
± 2% F.S.D. Range : 0 - 1 To 10 Amps .

Moving Coil , D.C. Transparent Acrylic Cover , Dial,On Stand With 4 Mm Socket Terminals, Scale 60 Mm. Accuracy ± 2% F.S.D. Range : 0 - 1 To 10 Amps .

Milli Ammeter : Range : 0 - 1 To 1000 Ma.

Micro Ammeter Range: 0-25 µA-30 µA
...................................: 0-50µA
...................................: 0-100µA
...................................: 0-250µA - 300 µA
...................................: 0-500 µA

Voltmeter
" Sales Code PETC104"

Moving Coil , D.C. In Plastic Case , Diameter 65 Mm , Fitted On Stand With 4 Mm Socket Terminals , Scale 50 Mm. Accuracy ± 2% F.S.D. Range : 0 - 1 To 600 V.

Moving Coil , D.C. Transparent Acrylic Cover , Dial,On Stand With 4 Mm Socket Terminals, Scale 60 Mm. Accuracy ± 2% F.S.D. Range : 0 - 1 To 600 V.

Milli Voltmeter Range : 0 - 1 Mv
.....................................: 0 - 25mv
.....................................: 0 - 60 Mv
.....................................: 0 - 1000 Mv

Dual Range Meters, A.C. Voltmeter , Ammeter & Milliammeter ( Rectifier Type )

Galvanometer
" Sales Code PETC105"

Moving Coil , D.C. In Plastic Case , Diameter 65 Mm , Fitted On Stand With 4 Mm Socket Terminals , Scale 50 Mm.
Accuracy ± 2% F.S.D.
Scale : 25-0-25
..........: 35-0-35
..........: 50-0-50 .

Inter Scale ( Demonstration Meter )
" Sales Code PETC106"

A Magnetically Damped , Spring - Controlled Moving Coil Movement With A Pointer , 140 +/- 5 Mm Long Having A Spade-Shaped End Is Housed In A Wooden Case 220 X 110 X 280 Mm High With Glass Front And Rear Panels To Enable All Working Parts To Be Clearly Seen.With Pair Of 4 Mm Socket Terminals And Side Zero Adjustment Control. The Scales, 130 Mm Long Are Boldly Marked And Figured On Both Sides So As To Be Clearly Visible To The Class From The Front And To The Demonstrator From The Rear. Each Scale Is Fitted Through A Slot In The Side Of The Case And Has A Plug Connector Which Also Serves To Locate And Align The Scale Positively In Position. Basic Sensitivity Of The Meter Is 5 Milli-Ampear F.S.D. The Meter Can Be Used For Demonstration Of A.C. Or D.C. Ammeter Or Voltmeter With The Interchangeable Scales.

Interscale Dials : All Interscale Dials Carry With Them The Necessary Accessories For Converting The Meter To That Particular Range Or Function.

Type Range Range Range Range
Ma , D.C. 2.5-0-2.5 0-10 0-100 0-500
Amp, D.C. 0-1 0-5 - -
Volt, D.C. 5-0-5 0-5 0-15 0-300
Amp, A.C. 0-0.1 0-1 0-5 -
Volt, A.C. 0-5 0-15 0-300 -

Wheat Stone Bridge , Portable
" Sales Code PETC107"

The Bridge Is Extremely Useful For Resistance Measurements With A Fair Degree Of Precision .With Built In Sensitive Galvanometer And Dry Battery.With 4 Decades Of 10 X 1 , 10 X 10 , 10 X 100 & 10 X 1000 Ohms, With A Single Rotary Switch Furnishes 7 Range

Multipliers Of X 1000 , X 100 , X10 , X 1 ,X 0.1 , X 0.01 X & 0.001.
Range Of Measurement Is 0.001 Ohm To 11.1 Meg-Ohms
Accuracy Better Than +/- 0.1%

Also Available With Variey & Murray Loop Test For Location Of Faults In Cables.


Resistance Boxes : Plug Type
" Sales Code PETC108"

Interchangeable Plugs Having Moulded Bakelite Top In Wooden Box With Bakelite Top,With Non-Inductive Wound. Accuracy +/- 0.1%.

Range Ohms Total Ohms
0.1 To 1 2
0.1 To 5 11
0.1 To 10 21
1 To 50 110
1 To 100 210
1 To 500 1110
1 To 1000 2110
1 To 5000 11110
1 To 10000 21110

Resistance Box , Dial Type
Wound Non-Inductively ,The Coils Are Mounted On Stems Of The Dial Studs With A Ball Click Device To Ensure Correct Location With Phosphor-Bronze Brush .
Accuracy : +/- 0.1 %.
Range : 0.1 To 10000 Ohms.

Resistance Coils
" Sales Code PETC109"
In Transparent Case : Range 0.1 To 500 Ohms , Non-Inductively Wound With Two Terminals. Resistance Ohms 0.1 - 500.

Round Bakelite :Two Terminals ,Constantan Coils , 0.1 To 1000 Ohms.

Rectangular Bakelite :Two Terminals , Maganin Coils, 0.1 To 1000 Ohms.

Rectangular Bakelite :Four Terminals , Maganin Coils, 0.1 To 1000 Ohms.

Standard Resistance : Oil Filled,Round Brass,Manganin Coils, 0.001 To 1000 Ohms .

Potentiometer (One Wire / Four Wire )
" Sales Code PETC110"
It Consists Of A Wooden Base With Brass Blocks, Fitted With 4 Mm Socket Terminals And A 100 Cm Wooden Scale.A Knife Edge Jockey Is Also Supplied.

Metre Bridge , Carey Foster
" Sales Code PETC111"
Four-Gap Type Mounted On Wooden Base ,Scale Graduated 0 To 100 Cm X 1 Mm. With Nickelled Brass Strips And Connecting Pieces ,With 4 Mm Socket Terminals .Complete With Knife Edge Jockey .

Terminals
" Sales Code PETC112"
Moulded Plastic Head , Pillar With 4 Mm Socket ,Shank Threaded. Complete With Nuts And Insulating Washers.

Cell Holder
" Sales Code PETC113"
Moulded Base To Hold Four Dry Cell Of 1.5 V .With Facility To Select 1.5 , 3 , 4.5 & 6 Volts.

Knife Switch, Double
" Sales Code PETC114"
Double Pole , Double Throw, Fitted On Bakelite Base For Panel Mounting.

Knife Switch, Single
" Sales Code PETC115"
Single Pole , Single Throw, Fitted On Bakelite Base For Panel Mounting.

Knife Switch
" Sales Code PETC116"
Low Voltage ,With Plated Contacts And Screw ,Mounted On Insulated Plate With Three 4 Mm Socket Terminals.

Range -
Single Pole Double Throw
Double Pole Double Throw.

Plug Key
" Sales Code PETC117"
For Making Or Breaking The Electrical Circuits , Brass Plug And Brass Blocks With Tappered Hole ,On A Bakelite Base.

Range - One Way .......Two Way .......Three Way.

Commutator Rversing Key
" Sales Code PETC118"
Used For Reversing The Direction Of Current In An Electri Circuit Quickly By Turning The Lever On The Circular Strips.The Keys Has Laminated Phosphor-Bronze Brushes Mounted On An Insulated Handle.

Tapping Key
" Sales Code PETC119"
Used For Sudden Make Or Break Of Electrical Circuits Mounted On A Bakelite Base With Terminals.

Available : One Way .......Two Way.

Battery Charger
" Sales Code PETC120"
For Charging Batteries. In Metallic Case With Ammeter,Awitch For 6v / 12v Charging,With Output Fuse And Indicator Lamp. Complete With Battery Terminals And Main Cable. Operates On 230 Volts
50hz.
Avalable In 2 , 4 & 6 Amps.

Power Supply
" Sales Code PETC121"

For General Use Experiment ,Encased In A Metal Case With Terminals For Output Voltage For 2 , 4 , 6 , 8 , 10 , 12 Volts Ac Or Dc At 3 , 4 , 5 Amp. Input Voltage 220 Volts ,50hz .

Power Supply , Regulated , D.C.
3 Digit Digital Meters For V & I
Constant Current , Constant Voltage Type.
Load Regulation 0.5%
Ripple Less Than 5 Mv .

Available -
Regulated Power Supply Continously Variable
Regulated Power Supply With Over Load Buzzer And Digital Meters. Fixed Power Supply

Regulated Power Supply , Research
" Sales Code PETC122"

This Is A Sophisticated Dc Regulated Power Source Having Range 0 To 30 Volt And Current Carring Capacity Of 0 To 2 Amp. The Voltage And Current Can Be Continuously Variable. Metering For Voltage And Current Are Separately Provided. The Power Supply Employs Cmos Devices And Integrated Circuits To Obtain High Regulation And Low Content. The Power Supply S Ideally Suited For Industries , Research And Educational Institutions.

Auto Transformer , Variable
" Sales Code PETC123"
It Gives Variable Out Put Ac Voltage Varying From 0 To 240 Volts. Input 220 Volts , 50hz. Insulated & Encased In A Metal Case With Rotating Knob & Marked Scale On The Top.

Available : 2 Amps .......4 Amps .......8 Amps

Demonstration Transformer
" Sales Code PETC124"

The Primary Coil Is Of 220 Volts And Two Interchangeable Secondary Coils Gives An Out Put Of 6 V & 12 V At 2 Amps.Complete With 2 Meters Of Cord & Plug Connections.

Multi Meters, Clamp Metrs also available
" Sales Code PETC125"