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What have you built lately?
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Old 14th November 2017, 03:02 AM   #1
HarryY is offline HarryY  United States
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Location: NY
What have you built lately?
Default What have you built lately?

I enjoy building things and just finished building the main board for a uTracer tube tester/tracer.

I still need to decide on how I want to finish it (enclosure, sockets, etc).



What have you built lately?
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Old 17th November 2017, 12:12 AM   #2
mkane77g is offline mkane77g  United States
Always Learning
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Join Date: Nov 2014
Location: 100 miles N. of S.F.
What have you built lately?
Just starting
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Old 17th November 2017, 01:06 PM   #3
soundbrigade is offline soundbrigade  Sweden
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Soldered a number of small boards for ATmega328 and ATtiny85. These are supposed to house programmed chips that will be used in various installations.
The ATtiny will be used in a dia scanner using a projector for dia slides.

Didn't order parts for ALL boards, but I have to complete boards för ATtiny and five for ATmega.
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Old 18th November 2017, 10:43 PM   #4
Wavebourn is offline Wavebourn  United States
Designer & Technologist
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Join Date: Sep 2006
Location: Pleasant Hill, CA
What have you built lately?
I built a DVR for my car. I was sick and tired of car registrators that do not record when it is needed. I tried several of them, all are crap.
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File Type: jpg IMG_3885.jpg (581.4 KB, 78 views)
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Old 19th November 2017, 01:47 PM   #5
w5jag is offline w5jag  United States
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Location: Arkansas
That worked?

A really simple analog FM stereo tuner - one bipolar transistor, two obsolete linear IC's, and a prefab front end and frequency counter / display.

Win W5JAG
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Old 29th December 2017, 04:56 PM   #6
Rundmaus is offline Rundmaus  Germany
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Not audio related, but the ugly table with the desktop PC in the dining room corner had to go.

I'm not sure this qualifies as an IKEA hack, but it does the job. Unused, the PC is now a nice cupboard that fits in with the other stuff in the room...

Click the image to open in full size.
Click the image to open in full size.
Click the image to open in full size.

I used a small IKEA cupboard, fitted it with additional bracing, a VESA screen mount, retractable keyboard and a remote-switchable power distribution. Works nicely! Network connection is via WLAN and Powerlan, so there is only one mains connection going in.

Regards,
Rundmaus
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Old 29th December 2017, 05:48 PM   #7
globalplayer is offline globalplayer  Germany
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Location: =)
3 test tops using the Fane Sovereign 12-250TC.
3 test kickbins using the the box Speaker 12-280/8-W.
numerous 6th order bandpass test subs using the Alpine SWG-1244.

All 12 inch rig (f3 28 hz).

Tops will be 1 to 2 per side.
Kicks 4 to 8.
Subs 8 to 16.

With the tops I am almost satisfied by now.
Kicks still need some fine-tuning.
Subs I am not sure if I should go isobaric on those.

I need to be ready for summer party time.
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Old 30th December 2017, 04:24 PM   #8
Lojzek is offline Lojzek  Croatia
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Default A transformation of "a cap only" crossover speaker into one properly filtered

I've had my share of fun using available scrap pieces of timber and veneer to make it look and sound like more presentable. The set is sounding wonderfully coherent, only light in bass which I don't mind considering TSP.
The original plastic front has made its way to a bin.
Attached Images
File Type: jpg Before 1.jpg (310.2 KB, 32 views)
File Type: jpg Before 2.jpg (311.2 KB, 36 views)
File Type: jpg After 1.jpg (299.7 KB, 31 views)
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File Type: jpg After 4.jpg (200.2 KB, 34 views)
File Type: jpg TSP.jpg (117.5 KB, 27 views)
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Old 2nd January 2018, 02:16 PM   #9
Lojzek is offline Lojzek  Croatia
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Another project of the anno domini 2017. Post #3098.
Chip Amp Photo Gallery
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Old 2nd January 2018, 02:41 PM   #10
soundbrigade is offline soundbrigade  Sweden
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Dug up some old projects and made some effort to finish them:

A Digital Noise module, CGS31 from Ken Stone (1st model)
An Analogue Shiftregister, CGS35, also from Ken Stone
and
An SN VOICE module, almost a complete synth based on SN76477.

Also replanned a little regarding the 2SK1058 SE-amp. Had fixed a big box to house it in, but went to my old workplace, cut a few sheets of aluminium for a smaller one. If I don't loose too much initiative I may be able to finish that one in a week maybe.
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