[Antennas] Off Topic - Heaphone Amplifier

[Tim]

I know this is not the right place for this but maybe you guys can point me
in the right direction.

I am trying to build a "Duplex" box for my rig for contesting allowing me to
use 2 sets of David Clark GS Headsets with a switch to select which headset
is the active audio into the mic input.

I want to include a small simple amplifier circuit to boost the audio coming
from the rig. Nothing serious just something to have it so I don't need to
have the AF turned all the way up for both parties to hear. The headsets
pretty much take care of any external noise but the audio coming from the
phones is just a little too low.

Thoughts, comments, URLs, or list ...???

Thanks in advance

73
Tim KD5CKP