Search results for query: *
  1. pulsar08

    the Pimeta-V2 thread

    I have the same problem where one of my buffers gets hot enough to hurt me if I touched it.  I know I installed one of them in reverse and I think on a different one there was a bridged solder joint and after I corrected it then one gets hot so they're probably fried or something.  I'm using the...
  2. pulsar08

    the Pimeta-V2 thread

    Whoops I see the mistake! BufL is reversed...lol.  I guess was paying more attention to putting on the right amount of thermal paste than the direction.  Now to try desoldering it and see if it's salvageable
  3. pulsar08

    the Pimeta-V2 thread

    There is an external power supply (an acopian 24v linear regulated) being fed into the pimeta.  The battery pack has not been constructed yet (planning to use 10-14 2500mah AA nimh depending how they fit in the case).  I was going to do that when it came time to case it.  C1 is jumpered.  It's...
  4. pulsar08

    the Pimeta-V2 thread

    I had 11.6v on the V+ and V- of both opamp sockets prior to installing any opamps or buffers.  Once I install the opamps and buffers I check and the rail voltage was like 19 on the V+ and 1.9 on the V- of both opamps. The buffers were hot too.  I went back and cleaned up my soldering around the...
  5. pulsar08

    The Opamp thread

    The dc offset with lme49860 was ~0-1 both channels, ad8599 was ~1/3, lt1364 was 36mV but I figured that was safe with only 32ohm impedance. I gave ad8610 a quick listen and it was pretty bad. opa627 otoh is by far the best. nothing else I've used is anywhere close. This is with a modded x-fi...
  6. pulsar08

    The Opamp thread

    Can I use my opa627 and ad8610 on adapters and ad823 which I bought for my pimeta v2 safely in my little dot I+? I read somewhere that fet input opamps are more fragile so I don't want to kill them. I've tried lt1364, lme49860, opa227, ad8599, and opa2132 I would have to say I prefer the opa2132...
  7. pulsar08

    The Apple diyMod: My Take on the Famous iMod [56k killer] Featuring 3G, 4G, 5G and nano 1G!

    I would like to mod an ipod touch 1g (or 2g/3g if possible) as seen on http://www.head-fi.org/forums/f43/fs...-415-a-424968/ I've searched high and low for any info on this but have come up totally empty and the OP is banned. Can anyone help me out? **EDIT** Found the actual explanation...
  8. pulsar08

    "World Music" recommendations, anyone?

    Anyone got some Japanese Ocarina (ala Karate Kid music) recommendations?
  9. pulsar08

    help fixing turntable: realistic lab 1600

    I just tried this record player out that my dad gave me. It hasn't been used in a long time. I listened to one side of a record and about half way through the 2nd side the right channel went dead. I shut it off for the day and came back a day later and it worked for a whole side of a record then...
  10. pulsar08

    "World Music" recommendations, anyone?

    Quote: Originally Posted by moriez Will check. Cheers fella. These ones are pretty cool to me as well: The Bela Fleck soundtrack to the documentary Throw Down Your Heart and so I learned about Oumou Sangare and totally dig the style on her album Seya. It feels a bit like a home...
  11. pulsar08

    the Pimeta-V2 thread

    Quote: Originally Posted by tangent it pushes you to 35 V rail caps, which means you sacrifice quality or capacity relative to equivalent 25 V I don't understand this relationship you claim between voltage and quality. Looking at previous discussions to me has been inconclusive...
  12. pulsar08

    the Pimeta-V2 thread

    Oh yeah. Sorry. I forgot about the second issue I have. Which caps would be best for power supply rails. Assuming I can use the +/-12v supply/15xAA nimh. The tallest caps my enclosure can hold are 34mm. I'm considering these which are available on mouser: 3x 647-UHD1H681MHD 680uf 50v...
  13. pulsar08

    the Pimeta-V2 thread

    I have a +/-12v dual regulated supply that is lying around. I checked to see if it's isolated and I think it is. Is it possible to use a dual supply with a pimeta that also has nimh batteries? Do I just keep TLE2426 as designed and connect the V+ and V- and leave ground unconnected or would...
  14. pulsar08

    TUBES SITES faq - add your fav's here

    Quote: Originally Posted by dBs Think the OP needs some updating. A LOT of those links are long since dead it seems like =X I went through the list and saved them all to favorites. A few were dead but others were still working but you had to go to the main home page because...
  15. pulsar08

    vinyl question, record is disintegrating

    If the chemical had gone bad I would think it would have reacted with the other records I used it on but maybe not. The other possibility is that I just filled the grooves with dust and the needle is digging it out as it plays. This seems like it might be possible since I can see what looks like...
  16. pulsar08

    vinyl question, record is disintegrating

    Yes, the solution is designed for vinyl. It says right on the label "anti-static record cleaner designed to efficiently remove dust, dirt and static without harming records" lol
  17. pulsar08

    vinyl question, record is disintegrating

    Yeah I realize that and I won't use that cleaner again either. I hope the stylus is ok. It still sounds ok for an old shure v15 type iii but I'm not too sure if it is different than before.
  18. pulsar08

    vinyl question, record is disintegrating

    I bought a record off ebay and it played fine but was a bit dusty so I cleaned it with this solution called magic giant thats been sitting in our cabinet for 30 years or so and a velvet brush and it must've had some kind of reaction cuz when I play it now it is disintegrating and leaving all...
  19. pulsar08

    HOWTO: SRC Best Sinc Resampler Ubuntu 9.10 (noob friendly)

    Will some other people try out the resampler and post they're opinions on the sound quality. Also I found how to enable the cross feed plugin so here's a simple how to: Assuming once more a functional ubuntu 9.10 setup open terminal and type the following commands. Quote...
  20. pulsar08

    Comments Needed on Vinyl Setup

    I was eventually able to find this post which has a rough guess of the tonearm mass: http://www.head-fi.org/forums/f7/ski...ntable-381131/ Quote: Originally Posted by memepool It's a fairly high effective mass arm around 15g So along with the 8.5g of the cart thats a total of...
  21. pulsar08

    Comments Needed on Vinyl Setup

    Pioneer PL-12d or another from this list http://www.head-fi.org/forums/f7/low...source-228059/ Denon DL-103 Hiraga MC Amp/Cambridge Audio 640p Denon AVR-3805 Using Alessandro MS-1i's A concern I have is the tone arm and cartridge match. The cartridge is 5 cu compliance which should...
  22. pulsar08

    HOWTO: SRC Best Sinc Resampler Ubuntu 9.10 (noob friendly)

    Quote: Originally Posted by Jon L I'm playing with Ubuntu 9.10. Any music player recommendations based on sound quality and playlist robustness? I'm coming from the venerable Foobar 0.8.3/Win XP configuration. I do have SRC but prefer SQ without upsampling. What soundcard/dac...
  23. pulsar08

    HOWTO: SRC Best Sinc Resampler Ubuntu 9.10 (noob friendly)

    Almost every digital source these days uses a dac chip which will employ hardware resampling to convert a 44.1khz signal to native 48/96/192khz. This interpolation cause signal degradation to some degree. Foobar2000 has a built in resampler dsp (PPHS) which is optimized for low cpu usage. There...
  24. pulsar08

    Any benefits from having a higher sample rate?

    Nyquist–Shannon sampling theorem - Wikipedia, the free encyclopedia Have fun reading that. It essentially boils down to the same thing many people have said. Whenever a signal of audio/image data is interpolated to re-sample/re-size it there will always be some artifacts created. The only...
  25. pulsar08

    portable setup vs. ht receiver question

    I just got some ms1i's today. I listened to them on my ipod touch 3g 8gb and a stock x-fi xtreme music and I thought they sounded great with some lossless quality music. Then I went and plugged them into my dads denon avr-3805 and listened to the same files on the denon. it sounded wayyyy...
Back
Top