Phantom Powered Buffer

[tempus]

Hey all;

A couple weeks ago there was some discussion about the feasibility of a phantom powered buffer for guitar. I think this design should work (I haven't actually built it yet though).



Any thoughts?

[Gus]

You have the source trying to drive the internal resistance of the 9vdc supply.

http://www.aronnelson.com/gallery/main.php/v/gus/9pp.GIF.html?g2_imageViewsIndex=1

[tempus]

Damn...

How about this?



I cant use a TRS plug, because I want to use the buffer for the piezo pickup on my electric guitar, i.e., I'm already using a TRS for the magnetic and piezo pickups.

Thanks

[tempus]

No, wait. Replace that diode with a 1-2K resistor. Would that fix the problem of the source trying to drive the battery (I actually plan to use the 9v from my pedalboard PS)?

Thanks