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Problem: PIMETA with insane DC Offset (7v)
Greetings to all Headfiers! I recently built a PIMETA according to schematic diagram from Tangent's website. It works perfect with OPA227/OPA2227, OPA627/OPA2227 (<1mv). When I plug-in OPA637 it gives out 7v! Is there a particular way to configure OPA637 in PIMETA? I've assumed the schematic...- aeroes
- Thread
- Replies: 14
- Forum: DIY (Do-It-Yourself) Discussions
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Looking for a portable grado-like sound
Greetings to all headfiers! I really like the sound of my SR60, since using it as a portable isnt a good idea, Im searching for a canalphones/earphones that would at least sound like grado's with even more bass? possible? Any thoughts will be appreciated! Thank you!- aeroes
- Thread
- Replies: 14
- Forum: Headphones (full-size)
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How to build a MINT without a POT?
While Im still waiting for my POT to come, I wanted to know if my MINT will actually work or not. Is it possible to make it work without a POT? Do I have to change any resistor value? I put 3.32K to R4 is this too high? Thanks in advance!- aeroes
- Thread
- Replies: 2
- Forum: DIY (Do-It-Yourself) Discussions
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TDA2822M Alternative?
Hi folks! Does anyone know any alternative/replacement of this particular chip? I found this chip in my monsoon planar's control station wer there is also a headphone jack. The amp sound too bright so Im planning to replace it with other alternative. TIA- aeroes
- Thread
- Replies: 1
- Forum: DIY (Do-It-Yourself) Discussions
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Good Alternative for Panasonic EVJ-C20 POT?
Im planning to build a MINT and I figured that I could buy all the parts I needed from mouser.com except for the panasonic EVJ-C20. Anyone knows a good alternative available at mouser? Thanks!- aeroes
- Thread
- Replies: 6
- Forum: DIY (Do-It-Yourself) Discussions
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Good alternative for ELPAC WM080?
This thing is already discontinued at mouser and not available anymore. Can anyone suggest me a very good alternative? Im looking for 24v linear/regulated power supply for my PIMETA. Thanks!- aeroes
- Thread
- Replies: 42
- Forum: DIY (Do-It-Yourself) Discussions
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Where to find good Power supply?
Hi folks! I cant find the highly regarded ELPAC WM080 24V at mouser anymore. It shows that its already being replaced and not available! Can someone recommend me another good brand or at least equivalent to that ELPAC psu that is available at digikey or mouser? All the parts for my PIMETA...- aeroes
- Thread
- Replies: 0
- Forum: DIY (Do-It-Yourself) Discussions
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What kind of adapter for AD8620AR?
I was about to place my order for a PIMETA project when I find out that I need an adapter for AD8620AR, can you guys tell me what kind of adapter should I use with it?- aeroes
- Thread
- Replies: 5
- Forum: DIY (Do-It-Yourself) Discussions
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PIMETA good enough for Senn 580?
Im considering building a PIMETA with Tangent's guide, will this amp good enough to push Sennheiser 580 at it's best? What are the best choices within the price range? Thanks in advance!- aeroes
- Thread
- Replies: 6
- Forum: Headphone Amps (full-size)