Re: Help with passive eq
I would like to hear if you have any suggestions on how best to power such a device too.
From memory, I think those LM type op-amps are designed to work off single rail, so no half rail/false zero rail line is needed.
If you use "normal" op-amps a false zero rail will be needed unless you have a + zero and - supply.
Easily done on a single rail supply with a potential divider of say two 470-560 ohm resistors bypassed with a couple of 100-470 uF caps will do nicely.
As for PSU required you will have to look up the current consumption of devices you choose to use and see whether a battery supply will suffice or not, and evaluate how "mobile" you wish to use the graphic of course.
As for voltage, I would hope 9 to 15 volts would do, check the spec of the op-amps maximum rated voltage.
Last edited by Cruisin Marine; 2nd Jul 2022 at 8:35 pm.
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