|
|||||||
| Home | Forums | Rules | Articles | Store | Gallery | Blogs | Register | Donations | FAQ | Calendar | Search | Today's Posts | Mark Forums Read | Search |
| Headphone Systems Everything to do with Headphones |
  |
|
|
|
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 |
25th November 2003, 07:34 PM
|
#1 |
|
Electrons are yellow and more is better!
diyAudio Member
|
Current feedback high speed headphone amp with diamond output buffer
Current feedback high speed headphone amplifier with diamond output buffer...
This is my first real attemt to build an amp which I have simulated first. DC - 20 MHz but less I suppose. All SMD!
__________________
/Per-Anders (my first name) or P-A as my friends call me |
|
|
25th November 2003, 10:56 PM
|
#3 |
|
diyAudio Member
Join Date: Aug 2003
Location: Prague,Czech Republic
|
Realy nice work Per, but I have question : have you any phones with similar wide frequency ? Was your grandfather dolphin and your father bat ? Have you " sonar " ears ? Will be sound produced by this amp pleasant for guys which have " glass cathode head " ?
|
|
|
|
26th November 2003, 06:16 AM
|
#4 |
|
diyAudio Member
Join Date: Apr 2003
Location: Copenhagen, Denmark
|
Peranders
I'm also interested in knowing why you let it go all the way up to 20 MHz???
__________________
Free Schematic and Service Manual downloads www.audio-circuit.dk, Company: www.dupont-audio.com, Joint venture: www.DupontMantra.com |
|
|
|
26th November 2003, 10:44 AM
|
#5 |
|
diyAudio Member
Join Date: Apr 2002
Location: Prague, Kitakyushu, Fukuoka
|
Regarding frequency range - less is sometimes more. DC - 100kHz might give better sonic results than DC - 20 MHz, once you'll see and hear
 , as you do not need to listen to RF intermodulation products.But for short wave transmitter, DC - 20 MHz will definitely give better result
|
|
|
|
26th November 2003, 11:02 AM
|
#6 |
|
diyAudio Retiree
Join Date: Oct 2002
Location: Spain or the pueblo of Los Angeles
|
kilometers Per hour
Here's some Gain Bandwith products for some of the most popular op amps among
the DIY builders: OPA627 16MHz OPA604 20MHz AD8610 25MHz AD825 41MHz OPA627 >50MHz I think Per is probably in the neighborhood of a reasonable bandwidth. It sounds like a good idea to me......... |
|
|
|
26th November 2003, 08:22 PM
|
#7 | |
|
Electrons are yellow and more is better!
diyAudio Member
|
Re: kilometers Per hour
Quote:
  If you (not Fred) check the shematics you have a "speed adjuster" so you can tune in the speed you like but the main purpose is to get a stable amp. Don't forget that we have a bunch of guys here which like current feedback opamps with speed of > 100 MHz => GHz transistors.
__________________
/Per-Anders (my first name) or P-A as my friends call me |
|
|
|
|
26th November 2003, 08:28 PM
|
#8 |
|
diyAudio Member
Join Date: Apr 2003
Location: Copenhagen, Denmark
|
Peranders
This is serious!
Please explain to me the advantages of having audio gear that are able to reproduce 20MGHz and up..... The harmonics are "long gone" at that frequency!!!!!
__________________
Free Schematic and Service Manual downloads www.audio-circuit.dk, Company: www.dupont-audio.com, Joint venture: www.DupontMantra.com |
|
|
|
26th November 2003, 08:32 PM
|
#9 |
|
diyAudio Member
Join Date: Aug 2003
Location: Prague,Czech Republic
|
Speed
Per, you have certainly true - ultra fast stabil amp will have low distortion on high frequecys and it is right, but read again words of PMA - ultrawide frequency band is not in some cases the best solution.
|
|
|
|
26th November 2003, 08:45 PM
|
#10 | |
|
Electrons are yellow and more is better!
diyAudio Member
|
Re: Speed
Quote:
Pcb's are ordered in case any wonders...
__________________
/Per-Anders (my first name) or P-A as my friends call me |
|
|
|
|
| Currently Active Users Viewing This Thread: 1 (0 members and 1 guests) | |
| Thread Tools | Search this Thread |
|
|
Similar Threads
|
||||
| Thread | Thread Starter | Forum | Replies | Last Post |
| four transistor emitter follower (diamond buffer) as power output stage? | capslock | Solid State | 99 | 14th September 2010 09:17 PM |
| FS:TI(Burr-Brown) BUF634T 250mA HIGH SPEED BUFFER | YFW | Swap Meet | 2 | 3rd July 2008 02:15 AM |
| CFP diamond buffer output stage with vertical FETs, thermally stable? | Russ White | Solid State | 5 | 1st January 2008 04:16 AM |
| Diamond Output buffer eats trannies (thermal) | blu_line | Solid State | 50 | 13th February 2007 08:03 PM |
| sziklai-darlington diamond buffer (SDDB) for power output stages | mtlin12 | Solid State | 5 | 1st April 2005 06:55 AM |
| New To Site? | Need Help? |
| Page generated in 0.12938 seconds (70.01% PHP - 29.99% MySQL) with 11 queries |
