last update : 13-11-1998
A stepped attenuator can be a big improvement compared to a cheap pot. Use the Java applet to calculate the resitor values. Simply fill in the desired total impedance, maximum level, minimum level, number of steps.
schematic :
remember :
With a 2 * 12 switch and using one position for off gives 2*11 steps.
Inspired after reading the DIY supplement of
HI-FI World december 1998
With your mouse you can select the calculated values, with the key stroke Ctrl-C
you can copy the values to the copy/paste buffer.
Don't try to find the exact values, just pick the closest value from the E24 range.
Have fun !!
and come back in a few weeks for improved version
Schematic S.A. Back to the main audio page, hifi tweaks