Search found 6 matches
- Fri Nov 21, 2008 1:53 pm
- Forum: General Discussion
- Topic: How to amplify Stereo Headphone Outputs
- Replies: 31
- Views: 21416
- Fri Nov 21, 2008 1:26 pm
- Forum: General Discussion
- Topic: How to amplify Stereo Headphone Outputs
- Replies: 31
- Views: 21416
Revised Schematic
To Bigglez:
Please provide a revised schematic for adjustable gain preamp.
Thanx a whole bunch!
BroDave38
Please provide a revised schematic for adjustable gain preamp.
Thanx a whole bunch!
BroDave38
- Wed Nov 19, 2008 5:13 pm
- Forum: General Discussion
- Topic: How to amplify Stereo Headphone Outputs
- Replies: 31
- Views: 21416
Thanx to you all for the GREAT info! I will build the device you showed me, Bigglez , with 10K pots (audio taper?) as suggested by CeaSaR , because one thing I am concerned about is over-driving any device I plug the unit into! I have the Radio Shack Phono preamp referred to by frhrwa and I was conc...
- Mon Nov 17, 2008 5:37 pm
- Forum: General Discussion
- Topic: How to amplify Stereo Headphone Outputs
- Replies: 31
- Views: 21416
- Mon Nov 17, 2008 2:31 pm
- Forum: General Discussion
- Topic: How to amplify Stereo Headphone Outputs
- Replies: 31
- Views: 21416
Stereo Headphone Output Levels
Thanx for the fast reply, Externet! Please bear with me, but The output device is a cell phone with no gain controls. I believe that the outputs are 50 mV and aren't Line Level Inputs 500 mV minimum? And isn't the characteristic impedance of earphone outputs a complete mismatch with Line Level imped...
- Mon Nov 17, 2008 2:03 pm
- Forum: General Discussion
- Topic: How to amplify Stereo Headphone Outputs
- Replies: 31
- Views: 21416
How to amplify Stereo Headphone Outputs
Is there a low-cost way to amplify stereo headphone outputs (50mV?) to
Line Level Inputs (500mV?) with a portable device powered by 3-14V DC?
It doesn't need to have gain controls, but should be a good impedance match. Thanx,
Bro. Dave38
Line Level Inputs (500mV?) with a portable device powered by 3-14V DC?
It doesn't need to have gain controls, but should be a good impedance match. Thanx,
Bro. Dave38