- circuit analysis - enter any two of three (R
_{1},R_{2},U_{out}) values, click the [Compute] button placed near the third value and the value will be found (if it is technically possible) - circuit synthesis - enter the voltage U
_{out}you expect from output and the calculator will try to find values of the resistors taken from E6, E12 or E24 series (to choose from) to get the voltage nearest to the requested one.

- 100Ω ≤ R
_{1}≤ 1000Ω - 1.25V ≤ U
_{out}≤ 37V

resistors in parallel

capacitors in series

inductances in parallel

LC resonance circuit

bandspread capacitors circuit

single-layer air-cored coil

circular loop coil

square loop coil

frequency,wavelength,period

three-digit capacitor markings

resistor codes (4 bands)

resistor codes (5 bands)

choke/inductor color codes

555 astable

555 monostable

match standard Ex value

combine standard E6, E12 & E24 values

LM317 voltage regulator

dBm ⇆ mW converter

mm ⇆ in converter

resistance of a wire

Ohm's law

dropping resistor for 'P' tubes

dropping capacitor for 'P' tubes

dropping resistor for 'U' tubes

dropping capacitor for 'U' tubes

line-of-sight

dropping resistor for LEDs

Y-Δ transform

Y-Δ transform (capacitances)

parabolic antenna gain

AWG converter

[ekalk]© Sławek Wernikowski, 2012-2016. Set of useful interactive calculators for electronics constructors and hams.

All suggestions and comments are always welcome.

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[[3.6 2014-10-09]]