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Post pics of your builds.... - Page 259

post #3871 of 9135
12/4/08 at 8:15pm
Glad to see you've returned, Captain Ødegård!
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post #3872 of 9135
12/5/08 at 2:37am
I just realized I've never posted on this thread. Since it's the only project I've taken pictures of, here's a pic of the Millet Hybrid Starving Student amp I built recently.

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post #3873 of 9135
12/5/08 at 6:00am

Cmoy2

I found a thread for a Cmoy2 on SGheadphones it was the subject of a lot of discussion, and had some very favourable comments. Basically a A47 with a buffered ground, I found the schematic, made up a board and gave it a try. I used 2x OPA2132PA for the audio and a NE5534 for the buffered ground, (I only had OPA134 or the NE5534 in single op amps) I may experiment but it sounds superb at the moment. I think I'll keep this one
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post #3874 of 9135
12/5/08 at 7:47am
i think the Millett SS that various head-fiers are building look stunning.
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post #3875 of 9135
12/5/08 at 8:11am
my balanced Bijou. took the better part of 3 months to finish. this is the most musically satisfying hi-fi i've ever experienced, and well worth the effort. a really fun and challenging build.

nothing real $$$ re: parts selection. just wanky wire from Oyaide for signal wiring, some Sonicaps here and there, and homebrewed ground-shunt attenuators with: Electroswitch D9 23 pos rotary switches, Kimber wire, Vishay RN60D for ground-shunt resistors, and KOA Speer SPR2 (aka Kiwame) for I/O resistors.

[IMG][/IMG]
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post #3876 of 9135
12/5/08 at 8:28am
That is really nice. Love it
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post #3877 of 9135
12/5/08 at 7:09pm


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post #3878 of 9135
12/5/08 at 9:03pm
Just finished casing my first ever build: 2 CMOYS.

The casework was more difficult than I expected, but I'm still pleased considering its my first effort.





One quick question: How do I mount LEDs onto the tin?
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post #3879 of 9135
12/5/08 at 9:15pm
Quote:
Originally Posted by nsx_23 View Post
One quick question: How do I mount LEDs onto the tin?
there used to be things called 'clip-lites' that either fit over the led or around it, like a ring.

alternately, some kind of rubber grommet. those are easy to find and cheap. leds just press-fit inside them if you pick the right led and right 'donut' size
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post #3880 of 9135
12/5/08 at 9:17pm
Quote:
Originally Posted by Captain Ødegård View Post
I'm not sure I'd spend effort copying a corporate logo

what purpose is that?

you did a nice job; but I'm curious why someone would care about spending actual effort on what corporations use for advertising, ie, logos?

is that apple icon THAT much of an 'art' symbol? boggle...
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post #3881 of 9135
12/5/08 at 9:23pm
Quote:
Originally Posted by linuxworks View Post
there used to be things called 'clip-lites' that either fit over the led or around it, like a ring.

alternately, some kind of rubber grommet. those are easy to find and cheap. leds just press-fit inside them if you pick the right led and right 'donut' size
I like to just drill a 1mm hole through the panel, create a 2.8mm blind hole from the back, and just press-fit the LEDs, and perhaps tack it down with a a small dab of glue or epoxy if it's too loose.

On a thinner panel where you can't drill blind holes, I would just drill a 2mm hole, and just bend the LED leads so they align in place.
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post #3882 of 9135
12/5/08 at 9:34pm
I use clips from Jaycars (HP1102) or a blob of hot glue. Well done with the first cases, I find if you leave the washer off the switch they close better.
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post #3883 of 9135
12/5/08 at 9:44pm
Yep, I had quiet a few leftover washers and other bits and pieces left over after casing....

I had actually stuffed up the input/output socket holes when trying to case the PCB build, hence a bit of tape with white out over it to hide the mistakes.

Hmm, looks like I'll need a small drill for the LEDs. I've been using a plier punch so far for the pots and sockets....

Now I need a new project. I've caught the DIY bug quiet badly. As much as I'd love to build a starving student, thats probably a bit off limits for me right now. Fred_fred2004, where did you get the PCB for the CMOY2? I'm reading SGheadphones atm, and can't seem to find anything.

Perhaps mini3 or Pimeta? I'm worried about burning through a million op-amps with the mini3 though............
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post #3884 of 9135
12/5/08 at 10:08pm
If you use the jaycar clips the paper punch hole is the perfect size so you won't need a drill.
The Cmoy2 board is home made using the good old toner transfer. I found the schematic and worked from there
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post #3885 of 9135
12/6/08 at 3:12am
Where did you get the schematic?

Also, the LED I used is 3mm (The LED is for the casing of the tangent build). Those clips should still fit right even using the 6mm hole punch?

As for making my own boards, would this work: http://www.jaycar.com.au/productView...Max=&SUBCATID=
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