Why new? Ether I have got fakes...that makes the trouble?
And most are usually missing a leg or two trying to get them out...
I have already spent weeks, trying to figure out what happens/why...without success.
The last minute I will spend on them are the way to the waste-bin.
Arne K
And most are usually missing a leg or two trying to get them out...
I have already spent weeks, trying to figure out what happens/why...without success.
The last minute I will spend on them are the way to the waste-bin.
Arne K
Ahh OK,guess it could be fakes if purchased on ebay and not through authorised dealer.I assume you have properly bypassed all the power pins with small(ie.1uf) film or ceramic caps.
Hi all...
Save those boards!
I might suggest buying some high quality IC sockets. The ones with the round, machined pin sockets, not the cheaper folded spring ones. They are very reliable, have little effect, and you can then change parts easily and quickly.
I even use them as individual sockets for caps and resistors. Get some 24p or larger sockets, or just the inline strips, break them up carefully with your needlenose piliers, and you have single pins! Perfect for developing, where you might be changing filter values a lot till settling down on final values. Then you can solder permanently if you like.
As a troubleshooting tip, see if you can separate your crossover into lower order sections, to see if they work. That should help you to pin down where the problem is.
Good luck!
Save those boards!
I might suggest buying some high quality IC sockets. The ones with the round, machined pin sockets, not the cheaper folded spring ones. They are very reliable, have little effect, and you can then change parts easily and quickly.
I even use them as individual sockets for caps and resistors. Get some 24p or larger sockets, or just the inline strips, break them up carefully with your needlenose piliers, and you have single pins! Perfect for developing, where you might be changing filter values a lot till settling down on final values. Then you can solder permanently if you like.
As a troubleshooting tip, see if you can separate your crossover into lower order sections, to see if they work. That should help you to pin down where the problem is.
Good luck!
Did most of you lost interest in the latest group buy, or do you have difficulty with the WIKI?
I count another 10 or so members who showed interest in the latest group buy but haven't signed up (F1 fan, CJC, umut1001, Munga, icsaki, Nisbeth, Toaster, bfischer, NYCone and potepuh). These account for about 60 possible boards. Together with the people who signed up were getting near the target of 100 boards.
Do you guys still have interest?
I count another 10 or so members who showed interest in the latest group buy but haven't signed up (F1 fan, CJC, umut1001, Munga, icsaki, Nisbeth, Toaster, bfischer, NYCone and potepuh). These account for about 60 possible boards. Together with the people who signed up were getting near the target of 100 boards.
Do you guys still have interest?
I still have interest and have attempted to sign up using the Wiki site, but that fails repeatedly. I've been researching alternate paths to take and would be interested if there was some progress.
Hello everyone,
I just moved and started a new job, so I have been off line lately. There seems to be enough interest, and now the Wiki doesn't work for me either - no edit tab.
If you are still interested, please email me your desired quantity using the email option when you click on my user name.
Bob
I just moved and started a new job, so I have been off line lately. There seems to be enough interest, and now the Wiki doesn't work for me either - no edit tab.
If you are still interested, please email me your desired quantity using the email option when you click on my user name.
Bob
So far I have only heard from Bfisher and potepuh. Is anyone else still interested?
Merry Christmas to all.
Merry Christmas to all.
I am still interested in probably 6 filter boards and 2 PS boards, I just didn't have a chance to sign up on the wiki. Is it 6 boards what I need for a stereo 3-way crossover?
I'll be offline until the new year, so don't fret if you don't get a reply. Not sure why email isn't working (looks like a forum problem), but PMs are OK, too.
I have just posted a few boards and power supplies for sale over on the swap meet.
http://www.diyaudio.com/forums/swap-meet/205534-fs-active-crossover-pcbs-power-supplies.html#post2882950
http://www.diyaudio.com/forums/swap-meet/205534-fs-active-crossover-pcbs-power-supplies.html#post2882950
I just posted in the swap meet some boards for sale, if anybody is interested.
http://www.diyaudio.com/forums/swap...-pcbs-power-supply-boards-gb.html#post3710679
http://www.diyaudio.com/forums/swap...-pcbs-power-supply-boards-gb.html#post3710679
Can anyone tell me what would be a good (ideally free or cheap) program to design & test (simulate) circuits for active filters. I used Circuit Maker to model & modify the Linkwitz ASP crossover boards to suit my speakers but it will not run on my new PC and hasn't been supported foe eons.
I would like to design & build a SMD version for speakers I'm going to build.
I would like to design & build a SMD version for speakers I'm going to build.
Kind of missed this one earlier... and I'm just recovering from Xmas, hosting the big gathering this year...
A couple of good circuit sim programs are: LTSpice, and Simetrix.
LTSpice is well known, well supported, used by huge numbers of people, and free.
Simetrix is a commercial program, but they have a full featured but circuit size limited free demo.
I use them both, kinda like the schematic drawing interface of Simetrix more than LTSpice's... and you'll find more tutorial support with LTSpice... but both are great for the job.
A couple of good circuit sim programs are: LTSpice, and Simetrix.
LTSpice is well known, well supported, used by huge numbers of people, and free.
Simetrix is a commercial program, but they have a full featured but circuit size limited free demo.
I use them both, kinda like the schematic drawing interface of Simetrix more than LTSpice's... and you'll find more tutorial support with LTSpice... but both are great for the job.
Bob
Is that 500mA per rail or total? At 15V
What voltage & VA transformer would you recommend for a single PSU board, again 15V
How much current does a fully packed crossover board use.
So many questions, some subjects never go away 🙂
I'm just waiting for parts to start building the crossovers.
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