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: EEC-9961
Classroom optics experiments for high school and college students
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How often do the compensator plates need calibration
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ESAW Resistance Substitution Box (EEC-10403) lo-5209 : EEC-9961ESAW Resistance Substitution Box (EEC 10403) Comprising 12 radio type resistances using standard preferred values covering the range 100 ohms to 470 kilo ohms. In the steps ratio of 1: 2 approx. Selection by means of rotary switch & external connection is via 4mmsocket. Resistance Tolerance (2) 1000hms +10% (E99) 2200hms +10% ia 470 ohms +10% (EQ ikilo ohms +10% (2) 2. 2 Kilo ohms +10% (EI) 4. 7Kilo ohms +10% [E9) 10kilo ohms +10% (AR 22kilo ohms +10%
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