Basic Structure     : The unit consist of a variac, a step down transformer, a bridge rectifier circuit and an ammeter of 0 - 10 amp to read current. D. C. Output          : Approximate 0 - 10 V, Continuously adjustable  to give a  variable current of 0 - 10 Amperes depending upo..

Conductivity Bridge (Electronic)..

with Built in Oscillator & Digital for Buzzer for Null point detection..

Usage                 : This bridge is very suitable for the use of wires and cables manufacturers. It is being extensively used for finding the resistance of transformer                 &nb..

The instrument is designed for the measurement of resistance electrolytes etc.Slide wire             : is circular type and is calibrated from 0.01 to 10 ohms.Rotary dial           : has six multipliers of 0.1, 1, 10, 100, 1000 and 10000.Range  ..

with Built in Oscillator &  Buzzer as Null detector..

P=R3=consists of std. decade dial of 3 dials- 10x10, 100x10 & 1000x10 WQ=R4=consists of standard decade dial of 3 dials- 10x10, 100x10 & 1000x10 WR2 =consists of standard decade dial of 3 dials-.01x10, 0.1x10 & 1x10  WL1 =single dial Inductance Box (10mH to 100mH) is to be connected from outside.R2 =is connected in Series with L1&n..

P=R3=consists of std. decade dial of 3 dials- 10x10, 100x10 & 1000x10 WQ=R4=consists of standard decade dial of 3 dials- 10x10, 100x10 & 1000x10 WR2 =consists of standard decade dial of 3 dials-.01x10, 0.1x10 & 1x10  WL1 =single dial Inductance Box (10mH to 100mH) is to be connected from outside.R2 =is connected in Series with L1&n..

New type with Built in Oscillator & Digital ..

Q = R3  = Four Dial resistance box 0.1x10, 1x10, 10x10, 100x10ohms.C1 = C2 = Single dial condenser Box of 0.1x10mfd.R2 = A variable 4-dial resistance box of 1x10, 10x10, 100x10 & 1000x10ohms.R1= Plug type resistance box 1 to 500 ohms.L1= Unknown Inductance whose value is to be calculatedR1 is connected in series with L1  to form 1st a..

The resistors are of manganin coils bridge wire is accurately calibrated. Vernier is attached to the sliding contact and fine slow motion available mercury  contacts are fitted. Length of the slide wire is 30 cm. Resistance values are 0.1, 0.2, 0.4, 0.8, 1.6, 3.2, 6.4, 12.8 and  0.15 ohm for 30 cm slide wire. Range of resistance measurabl..

For Precision Resistance measurements.Built in : Sensitive Galvanometer (10 u Amps) and a dry battery 4.5 volts.Series Arm : There are 4 decades of 10x1,10x10,10x100 & 10x1000 ohms.Range Multipliers : A single rotary switch furnishes 7 range multipliers of x 1000, x 100, x 10, x 1, x 0.1, x 0.01 and x 0.001.Range of Measurement : 0.001 ohm to 1..

Usage                                 : It is a precision bridge for the measurement of low resistance.Basic Structure            ..

The ratio arm is two dials of 1, 10, 100 and 1000 ohm each.  The rheostat arm is in three dials having decade of 0.1, 1 and 10. A slide having 0.17ohm resistance is connected in series with unknown L. The slide wire is calibrated into 170 equal parts. A special double key is fitted to bridge.  The key is internally connected with terminal..

P= R1=consists of ratio  dials of 1, 10, 100 and 1000 ohmsR2=consists of ratio  dials of 1, 10, 100 and 1000 ohmsC1 = Gang Capacitor of 500pf.Q = in this arm C1 is placed parallel with R2 to form 2nd   arm cdR = C3= consists of three dial condenser box of 0.001x10, 0.01x10 & 0.1x10mfd.R = consists of three dial resistance bo..