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  1. dgardner

    New! Longer Battery Life for IPods

    Electronic Product - weekly Update http://www.sonnettech.com/
  2. dgardner

    Conrad MF30-75 Heatsink (i.e. For Dynahi, etc.)

    Hey, I just noticed another thread that Dynahi builders looking for heatsinks might want to know about. Check out This Thread
  3. dgardner

    Itunes 6.0.1.3 sux! help.

    The problem I have is that the update installer program runs and I get NO errors but I end up with NO application. So I have broken itunes again and can't get it back. Even the older version 5 won't re-install. XP Service Pack 2 installed. What's the secret????
  4. dgardner

    Kevin Gilmore Amps - Dynalo, Dynamid, Dynahi, Dynamite - Nomenclature explained

    I must get at least one PM a week asking me about the the various incarnations of DIY Gilmore Amps. Perhaps this thread can keep the explanation in circulation. First of all, I had nothing to do with the crazy names. Dynalo = The Original Gilmore Dynamic Amp. Since Kevin Gilmore designed...
  5. dgardner

    All obsessive hobbies eventually blend together...

    Tonight I'm sitting here for the third night of transistor beta measuring 1000 parts and matching them... And it occurred to me that I truly need to have my head examined. Yes, another innocent hobby gone overboard. I must confess that my hobbies are all obessive and run serially through time...
  6. dgardner

    Designing Audio Power Supplies for International Use

    The purpose of this thread is start a DIY discussion on the design requirements to make a friendly and internationally acceptable power supply for split rail audio projects. Besides that obvious fact that international primary voltages vary (100, 120, 220, 240, etc), there seems to be a lot of...
  7. dgardner

    Who are the most respected "Golden Ears" on this Forum?

    I am interested in knowing who some of the most respected Golden Ear types are on the forum and which of them would be interested in working on a new solid state amplification design project.
  8. dgardner

    Smarthome Rackmount Chassis

    http://www.smarthome.com/8735c.html Never found this before in previous enclosure searches. Kinda affordable... 8735C1 1-HIGH CHASSIS (1.75) $64.99 8735C2 2-HIGH CHASSIS (3.5) $74.99 8735C3 3-HIGH CHASSIS (5.25) $79.99
  9. dgardner

    What's become of the Headwize Project Pages?

    What's become of the Headwize Project Pages? They are sorely missed. Has it moved? Do they need resources to host it?
  10. dgardner

    Keeping it REAL with A/B Switch Boxes to compare amps

    Last night I built up an A/B Switch box with two headphone jack inputs and one headphone jack output. Nothing new here. Then I started to go through my inventory of headphone amps and try to confirm/deny the "sonic differences" between them all. A created a stereo test tone waveform a few...
  11. dgardner

    Question: Gain Select Switch circuitry

    A few people have asked me about front panel gain select switches for the dynalo and dynahi amplifiers. It seems desirable to have at least two gain settings, one lower and one higher. The question is: What is the smartest way to implement the switch in the circuit? My thinking is that if...
  12. dgardner

    Ideas for making the Gilmore Dynahi Amplifier easier to build

    I would like to assemble the group's opinion on what things would make the Kevin Gilmore dynahi an easier and more attractive project for the do-it-yourself crowd. Right now, the build complexity seems to be more the issue than the total cost. This amp is not cheap to make, but is certainly...
  13. dgardner

    ON Semiconductor ThermalTrak Transistors - NJL3281D, NJL1302D

    I just got my long-awaited-for engineering samples of some new high performance BJT's designed for high-end output stages. These were possible candidates for the Gilmore Uberamp. Anyone else out there considering moving into higher wattage Class-A designs beyond the dynalo and dynahi...
  14. dgardner

    Dynalo PCB Rev C - Group Buy

    This is a group buy for my Gilmore Dynalo Revision C circuit board. (borrowing the protocol liberally from MisterX's other group buy threads....) If you would like to participate in this group buy please post a reply that indicates the number of boards you wish to purchase and also send me a...
  15. dgardner

    You know you're becoming a DIY headphone amp junkie when....

    You know you're becoming a DIY headphone amp junkie when.... 1) You get into town in a new city and the first thing you do after work is look up the in local yellow pages... not "night club" not "late night record shop" not "sports bar" but "Electronic Surplus".
  16. dgardner

    Another PCB Layout - Gilmore Dynalo / Dynamid

    I've been looking to test drive some new layout tools for PCB. I've built a Gilmore Dynalo using the toner transfer method with the Headwize project posting. Works great. My goal is to complete a new PCB layout and share it with the group. I also plan to have the boards fabricated at a...
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