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My Stuff |
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| This is a Tube Mosfet hybrid amp designed by Sijosae. It uses the tube as an input and MOSFETs for the output. I used a Electro-Harmonix 6922EH tube bought from Ebay and IRF610's but you can use a number of different tubes and MOSFETs. I am very happy with the sound. Its dead quiet and is the main headphone amp I use now. You can see a schematic and measurements etc here on Sijosae's page: http://www.headphoneamp.co.kr/bbs/zboard.php?id=diy_sijosae&no=217
Detailed discussion here in the Headwize forums: http://www.headwize.com/ubb/showpage.php?fnum=3&tid=5614 Pics:
The tube is lit up using a UV LED:
I mounted a few parts on the bottom of the PCB:
You cant using a switching power supply for any power supply that produces noise so I used a LM317 regulated 24V power supply using the same schematic as the TREAD but I made my own PCB to fit into this case:
Here is is next to my PIMETA, they use the same Hammond case:
Click here for the Eagle PCB files. Here is a picture of my PCB design:
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©®Max |
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