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Apps by Nathan Chao

Phasor Calculator 2.5

FREE
The ultimate calculator for ac passive circuits. This app will handle all the calculations for series, parallel and series parallel type circuits. It can do add, multiply, divide and subtract for phasors. It will do both polar tp rectangular and...

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Phasor Calculator Lite 1.2

FREE
This version will add, multiply and divide 2 phasors and give the answer as a phasor or rectangular with the built in polar to rectangular converter. It can also convert inductance in mh to ohms.

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AC Impedance Calculator 2.5

FREE
This app is an AC impedance calculator that can be used for series or parallel connected impedances. A series branch helps convert L and C values to impedances, All solutions provide user with both polar and rectangular answers for most flexible use....

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Trasistor Biasing Tutorial 3.6

FREE
This app shows step by step all the calculations and theory in finding the dc bias conditions for BJTs for any given set of resistors, beta and power supply voltage. The app also finds the points on the loadline such as Ic operating point and Ic...

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Pos Gain Op Amp Tutorial 2.4

FREE
The app leads the student step by step through solutions for 1, 2 and 3 input positive gain operational amplifiers. It is also useful as a homework aid to check your steps and answers.

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Neg Gain Op Amp Tutorial 2.6

FREE
This app leads students step by step analysis of 1, 2 or 3 input negative gain operational amplifiers. It is also a useful homework aid to check student approach and answers.

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American Art 1 1.0

FREE
This app displays the important artworks created by American artists in the 19th century. It includes works from mid 1820s to just before 1910. It starts with the Hudson River school to American Post Impressionists. This app does not include famous...

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AC CE BJT Actorial 2.4

PAID
This is another actorial or interactive tutorial app by N. Chao. This app can help solve bias and gain for ac voltage divider common emitter amplifiers. You can enter all the circuit values and see ac waveform results with ac solution details or...

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Active Filter Calculator 2.3

PAID
Use as a quick db calculator for 1st order active filters. This app works in 2 modes. In result mode you enter all Rs and C and f. The app will return with the db gain at the frequency entered. In design mode you enter just desired cutoff fc, Ri, C...

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AC Series Circuits 3.0

FREE
This app solves a series RLC circuit for all currents and voltages in 3 different configurations for flexible use. In addition to single component voltages, it solves for all branch voltage comhinations like VR+VC, VR+VL and VL+VC. It is a good...

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