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Older Activity
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Today, 04:10 AM
Awesome job, Johnny and Willow! Just catching up on this one, too... they turned out great! How's she liking them?
Don't know where they're...
97 replies | 4216 view(s)
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Yesterday, 10:17 PM
Ahem, the toroid is not grounded to the chassis with the center tap. Here's a close up that shows the ground wire connected to the IEC socket. All...
43 replies | 816 view(s)
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Yesterday, 07:39 PM
It's been frustrating enough that I yanked the kit out. I think it's a bad kit, or fake chips. Anyway, put in another LM4780 that is working...
43 replies | 816 view(s)
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Yesterday, 07:17 PM
AE, clarification please. So star grounding is NOT connected to the chassis?
43 replies | 816 view(s)
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Yesterday, 07:16 PM
AE, clarification please. So star grounding is NOT connected to the chassis?
43 replies | 816 view(s)
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Yesterday, 11:16 AM
Pete and Jay,
1. The DC offset is 0.9mV when the amp is on.
2. Slight almost imperceptible hum when the amp is turned on.
3. No pop or click...
43 replies | 816 view(s)
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Yesterday, 01:15 AM
Yes I did. They got quite warm to the touch, so I'll move each amp to its separate heat sink tomorrow.
43 replies | 816 view(s)
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Yesterday, 12:51 AM
OK Jay, got the zobel in place as instructed. Amp played loudly for 1/2 hour this time, sounded nice and clean, before shutting down again. I got a...
43 replies | 816 view(s)
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06-17-2013, 12:55 PM
Nick, that's possible. You'll never what you get from China. Good thing I've got quite a few LM3886 that I bought from TI a while back. I'll try the...
43 replies | 816 view(s)
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06-17-2013, 12:44 PM
Jay,
How do I calculate the value of the zobel in the LM3886? I've read that a 0.1uF capacitor and a 2.7R resistor at the output will do the job,...
43 replies | 816 view(s)
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06-16-2013, 11:59 PM
The amp shuts down during music play with a pair of 8 ohm speakers. This is the kit I used, sorry, no schematics. I'll try to mount each amp board on...
43 replies | 816 view(s)
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06-16-2013, 07:58 PM
Guys,
Here's the set up: Avel 330VA 25-0-25. LM3886TF kit. As you can see, the heat sink is big enough because the temperature on the LM3886 was...
43 replies | 816 view(s)
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06-16-2013, 12:55 PM
To all amp guys, I need some help. My LM3886 goes into thermal shutdown because my toroid cranks out 27VAC instead of the specified 25VAC. That makes...
43 replies | 816 view(s)
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06-15-2013, 02:22 PM
Haven't gotten into Holm much, but one thing to check would be if your PC/sound card can take a consistent measurement. Try doing multiple loop...
16 replies | 337 view(s)
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06-15-2013, 12:51 PM
Finally found a cartoon that applies to some of the stuff discussed here:
...
10 replies | 389 view(s)
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06-15-2013, 02:08 AM
Heard good and bad on these...
OTOH, I would hope nobody's running a 1.25" bit at 25000 rpm!! :eek: Think you're supposed to run a 3/4" @...
24 replies | 811 view(s)
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06-15-2013, 01:53 AM
Nothing like a little friendly competition....
:D
Well, after a couple o weeks back at The Place That Sucks the Soul Right Out of You (AKA,...
71 replies | 2243 view(s)
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06-15-2013, 12:59 AM
Maybe he should skip the coffee and try the pot instead?
25 replies | 634 view(s)
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06-15-2013, 12:38 AM
Just happened to catch your email address Ricky. Here's my other hobby:
http://thefiringline.com/forums/showthread.php?t=447629
Hong
3 replies | 189 view(s)
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06-12-2013, 11:10 AM
I feel for you EEs out there. I can just imagine spending hours and hours listening to these profs dishing out this dry stuff all semester long. I...
20 replies | 883 view(s)
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06-11-2013, 09:57 PM
Funds sent. Thanks Johnny.
Hong
2 replies | 249 view(s)
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06-10-2013, 09:26 PM
Just the driver I need!
94 replies | 1305 view(s)
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06-10-2013, 11:23 AM
Hey graywarden, congrats on your decision. Make sure you have a long discussion with your career counselor before embarking on any major. My advice...
41 replies | 877 view(s)
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06-10-2013, 10:38 AM
Sure hoosier. Glad to help.
19 replies | 750 view(s)
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06-09-2013, 08:04 PM
I'm using 4 mics for comparison here:
1. Dayton EMM-6 with cal file, SN 4565.
2. Cross Spectrum Labs (CSL) EMM-6 with cal file, SN 5105.
3. DIY...
19 replies | 750 view(s)
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06-09-2013, 07:11 PM
There's really no need for you to knock folks who build someone else's design. While you're at it, I suggest that you build your own drivers and wind...
67 replies | 2181 view(s)
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06-09-2013, 01:18 PM
I think you'd have to attend an audio show like the Newport Beach one last week, or CES in Vegas to determine whether DIY is worth it. Many speakers...
67 replies | 2181 view(s)
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06-08-2013, 03:52 PM
I got 6 Panasonic WM-61B capsules (the ones with the pins) from eBay and built 2 mics with the Linkwitz mod. I'll post some comparisons tonight...
19 replies | 750 view(s)
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06-08-2013, 02:21 PM
Hong, really nice job, you even got the look the same... but most importantly, the result is pretty flat.
Might not be too hard to derive a Cal...
19 replies | 750 view(s)
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06-06-2013, 06:48 PM
Man, I really missed the chance to meet you in person. Jon Pike and I met for lunch, then we went our separate ways because he came late. Well, may...
7 replies | 249 view(s)
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