English to Persian (Farsi) Other Construction / Civil Engineering

The diode bridge is easy (any germanium small signal diode can be used - OA91, OA95, 1N60,
1N34A etc. or you can try BAT43 Schottky diodes), but the capacitor will be trial and error.
Different movements have differing degrees of mechanical or electromechanical damping,
some have virtually none at all. It's much easier to experiment with the proper value of
capacitor if the rectifier is not inside the meter case, but if the rectifier is inside you'll need to do
some careful tests and modifications to determine the correct capacitance then add the
capacitor. Naturally, if you only wish to use the meters as 'eye candy' then you don't need to
bother, but it seems a shame to waste a perfectly good pair of meters. A typical 100µA
movement will have a resistance of about 4kΩ, although this does vary.