Inductance Boxes 1-5

Education Science International's Professional student's series Decade Inductance Boxes are specially Designed to use in Educational institutes, testing laboratories and Electronics Research and Development

APPLICATION

Designing and testing of inductive filters passive wave filters, networks, equalizers, Oscillators, Frequency analyzer, etc. in audio and low radio frequency regions, as temporary substitution for finding optimum value of inductance. Accuracy is 1% and Q between 25 to 150

DESCRIPTION

A wide range of accurate Inductance are selectable from single row of Aligned assembly and which allows direct read out from the position of KNOBS. These Inductance Boxes are designed to get more accurate inductances by selecting the individual Range of inductance any where between the Decade Ranges through the bottom shrouded Sockets and or multiple combination of Inductance can be obtained from the main output Sockets. This design reduces the maximum residual Inductance along with stray capacitance and contract resistance. these Inductances are made of precision winding on ferrite pot core with high quality enameled copper wire wound in such a way that to get ten precise values, in specially designed bobbins enable to get stable permeability and accurate values in shock and vibration, which are directly mounted on PCB. Usage of professional grade Rotary Switches of wiping & self cleaning contracts in copper alloy Contacts heavily silver plated with excellent dielectric strength material. these switches are designed as per Defense specification for very low contact Resistance and high insulation and are having a minimum life span of not less than 25000 cycles on full load.

These professional grade Inductances enclosed in metal cabinet with multi-colored polycarbonate membrane panel with Earth output on Shrouded Sockets. Switches & inductance coils directly mounted to the PCB completely isolated from the cabinet. Specially made quality hardware components provide easy operation and an elegant look. highly professional testing and measuring instruments are used to calibrate the Decade boxes.

Models	Description	Steps	Dials	Accuracy
DIB-1-4	100mH to  1.111 mH	100mH	4
DIB-3-1	0.01H to 0.1H	0.01H	1
DIB-4-1	0.1H to 1.0H	0.1H	1
DIB-1-3	100mH  to  111 mH	100mH	3
DIB-2-3	1mH to 1.11H	1mH	3
DIB-2-4	1mH to 11.11mH	1mH	4
DIB-3-2	10mH to 1H	10mH	2
DIB-4-2	100mH to 10H	100mH	2
DIB-5-1	1H to 10H	1H	1
DIB-1-5	100mH to  11.11H	100mH	5

GENERAL SPECIFICATIONS:   ELECTRICALS :

ACCURACY	1% @1KHz		INSULATION @500VDC	>100MOhm
Q	25-50		BREAK DOWN VOLTAGE	1.5 KV FOR CONTINOUS 1 MINUTE