TL064 substituted with TL084

[karahara]

Hello.

I've received an Guitar-pedal from a friend an found out that the Opamp was defect. So I changed a TL064-type with a TL084-type. The pedal now works fine, so my question is:

Is the 084 a suitable replacement for a 064?
Keep in mind that this things are powered by a 9V-Battery, so power consumption matters.

Thanks in advance for your help.

 

[paulb]

TL084 has higher power consumption, but less distortion. If that's the only active part in the unit, the battery will last maybe 6 to 8 times longer with the TL064. Other than that it should work fine.

 

[karahara]

Hi.

After telling him that he told me that he also could power it by 48V phantom power or wall wart, so it shouldn't be a problem.

Thanks for your info, paulb, helped me a lot.

edit:

Now I know, the number i have/had to look at is Iq.

TL064 Iq per channel(Max)(mA): 0.25

TL084 Iq per channel(Max)(mA): 2.8

Just for your/my information

 

[neutron7]

what does the pedal do? if it is distortion or overdrive it will sound different than originally intended.

 

[karahara]

Hi.

It's an active DI-Box with Speakersimulation (RED BOX MK III, Hughes&Kettner), so the quad opamps are used as active filters.

If you are interested in such a schematic have a look here:
GeneralGuitarGadgets