|
|||||||
| Home | Forums | Rules | Articles | Store | Gallery | Blogs | Register | Donations | FAQ | Calendar | Search | Today's Posts | Mark Forums Read | Search |
| Swap Meet Sell your stuff here, who knows, some other fanatic might be interested! |
  |
|
|
|
Please consider donating to help us continue to serve you.
Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving |
 |
|
|
Thread Tools | Search this Thread |
22nd September 2010, 07:42 PM
|
#1 |
|
diyAudio Member
Join Date: Feb 2004
Location: Anonymityville
|
FS: LME49720HA/LME49600 Servo Headphone Amp
For sale here is my hand made LME49720HA + LME49600 buffered headphone amplifier with DC servo.
This is more or less the design from the LME49600 datasheet and has a gain of 3x. There is one LME49720HA for each channel, using half the op-amp for the respective channels servo. The output offset is 14mV/20mV. Not as low as I would have liked it to be, but it's perfectly acceptable. This is caused by the IC's natural offset characteristics; any DC on the inputs will be nulled by the servo. The power supply is a DATEL BWR-15/330-D12A DC/DC converter. It can take a 9-18VDC input and output +/-15VDC @ 330mA. There is added CLC filtering on the outputs of the supply to clean up any residual noise. This converter alone sells for almost $90. Digi-Key - 811-1723-5-ND (Manufacturer - BWR-15/330-D12A-C) The ALPS volume pot has a switch that is used to control a FET that turns the supply on/off. A 12V 2A switching style wall-wart is included to power the DC/DC converter. Please keep in mind this was a DIY project and it is being sold as such. Buyer takes all responsibly for it's use. Price is $85 shipped (US/CA only).
__________________
"If you don't like funerals don't kick sand in Ninja's face." - Ninja |
|
|
23rd September 2010, 04:36 PM
|
#2 |
|
diyAudio Member
Join Date: Feb 2004
Location: Anonymityville
|
This is the only time I'll bump this thread and the only time I'll lower the price.
 $75 shipped (US/CA only).
__________________
"If you don't like funerals don't kick sand in Ninja's face." - Ninja |
|
|
|
24th September 2010, 09:29 PM
|
#3 |
|
diyAudio Member
Join Date: Feb 2004
Location: Anonymityville
|
~SOLD~
__________________
"If you don't like funerals don't kick sand in Ninja's face." - Ninja |
|
|
|
| Thread Tools | Search this Thread |
|
|
Similar Threads
|
||||
| Thread | Thread Starter | Forum | Replies | Last Post |
| Lme49600 headphone amp | Dr. Popo | Chip Amps | 67 | 12th April 2013 12:55 AM |
| Fs Metal Can-8 Opamp :lme49710ha/lme49720ha | bbp | Swap Meet | 15 | 25th December 2008 05:25 AM |
| FS: 8x LME49720HA TO-99 | theAnonymous1 | Swap Meet | 1 | 14th September 2008 03:39 AM |
| JLH headphone amp with FET's and servo | nelsonvandal | Headphone Systems | 17 | 30th August 2008 09:26 PM |
| TPA6120 headphone amp with servo | nelsonvandal | Headphone Systems | 3 | 8th November 2007 07:54 PM |
| New To Site? | Need Help? |
