Batra Trading Company

BTC Instruments made four Probe apparatus is used to measure the reisitivity & energy band gap of Crystal.

Experiments that Can be Covered With the Apparatus

Ø Measurement of resistivity of semiconductor by four probe method.

Ø Determination of Energy Band Gap.

The Apparatus Consists Of

(ii) BTC Oven (upto 200ºC)

(iii) Sample : Ge Crystal mounted

(iv) Thermometer (0-200ºC)

• Sturdy construction
• Minimal maintenance
• Longer service life

• Electromagnet: 0-7.5KGauss
• Power Supply
• Digital Gauss Meter with Probe
• Hall Set Up
• Hall Probe GE Xtal

Additional Information:

• Item Code: BTC-6

Objective : To plot Reverse saturation current Vs Temperature in reverse biased PN Junction Diode.

Features : Instrument comprises of DC Regulated Power Supply 0-5VDC/150mA, two digital meter for Current measurement, one PN Junction Diode (Ge type) is kept in Oven, connections of supplies, Meter and Diode brought out at 4 mm Sockets. Also provided with Oven with temperature on / off control switch.

Additional Information:

• Item Code: BTC-74
• Delivery Time: 1DAYS
• Packaging Details: BOX PACKING

BTC instrument make consists of power supply for g. M. Tube with digital readout meter. 6 digit counting system with its power supply. Controls for reset, start & stop through in panel. One presentable timer with 3 digit display & thumb wheel switch. Complete with g. M. Tube stand & one radio active source b.

Additional Information:

• Item Code: BTC-10
• Production Capacity: 100
• Delivery Time: 2
• Packaging Details: BOX

Further Details:

E/M BY THOMSON METHOD (BAR MAGNET METHOD)

The apparatus is designed to work on 230volts AC 50c/s. It has built in E.H.T. supply. New Cathode Ray tube is used to provide proper display. Very easy to handle and Compact in size.

Specification

Input : 230Volts 50C/s

E.H.T. : 800Volts at 10mA

Deflection Volts : 0-50volts at 15mA

L.T. : 6.3volts at 2A

Horizontal Deflection : By Bar Magnets

Vertical Deflection : By internal built in supply

Provided with wooden stand, Deflection Magnetometer &

pair of bar

The setup consists of a step down transformer, rectifier circuit (can be used as a half wave or a full wave rectifier) a filter circuit (on inductance and two capacitors) — the arrangement can be used for the study of various configuration of filters and a regulation circuit. The following studies can be carried out with this set-up
1. Study of rectification

(a) Full wave rectification

(b) Half wave rectification
2. Study of AC Component

(a) Efficiency of various types (Ripples) of filters - T type etc.

(b) The effect of load

(c) The effect of regulation
3. Regulation charac.

(a) Effective load on regulation

(b) The effect of change in mains voltage
Specifications :

Additional Information:

• Item Code: BTC-189L
• Production Capacity: 100
• Delivery Time: 2 DAYS
• Packaging Details: BOX PACKING