Anyone interested in Linkwitz Transform boards? - Page 2

joster · 23rd February 2005, 05:08 PM

I sent my address, did you not get it?

Topbrass · 23rd February 2005, 06:06 PM

Looks good Rob, I'd be up for a couple boards too.
Thanks,
Mike

justinc · 26th February 2005, 12:56 AM

I will probably take a few also, email me

justinc · 26th February 2005, 02:40 PM

actually I went ahead and emailed you, I had a few questions, get back to me when u have a chance. thanks

Maxhawk · 1st March 2005, 02:30 PM

I've received the boards and have some photos of one that's mostly completed.

http://maxhawk.bravepages.com/projects/Linkwitz/

Maxhawk · 1st March 2005, 07:11 PM

Here's pricing...

$12 for just the PCB, or $25 for the kit.

"Kit" means all the parts EXCEPT:

Transformer
Opamps
Resistors/Caps for LT and subsonic filter

I won't include these R's and C's because they will be different for every application. It's 8 resistors and 6 caps.

$5 shipping (US only)

Add $1.17 for Paypal fees (2.9% + 0.30).

So one kit will be $25 + $5 + $1.17 = $31.17. Just the PCB would be $12 + 5 + .79 = $17.79.

Getting parts from me saves you $5.

I currently have a limited supply of extra boards. If it turns out there is a lot of interest, I can order more boards.

Please email me directly if interested.

-Rob

justinc · 1st March 2005, 08:02 PM

where can we get the needed Transformer and
Opamps?

Maxhawk · 1st March 2005, 08:53 PM

It's listed in the BOM on my page, but I'll repeat it here to save people the trouble:

Transformer: Amveco TE70012, Digikey P/N TE70012-ND $10.76

Opamps: Burr-Bron OPA2134PA, Digikey P/N OPA2134PA-ND $2.63

You can use just about any dual opamp. The OPA2604 would work fine, TL072, and there are a bunch of National and Analog Devices parts that will work too.

Ed LaFontaine · 1st March 2005, 11:09 PM

Hi Maxhawk,

I'm running stereo subs. Do I need to install the power supply on both boards? (I need one for each channel)
Also, what is the "rated" output of the power supply? I may want to run my electronic x-overs from this power supply so I can have it all in one box.
Thanks,

Ed

23rd February 2005, 05:08 PM	#11
joster diyAudio Member Join Date: Sep 2004 Location: St Louis	sent email? I sent my address, did you not get it?

1st March 2005, 11:09 PM	#19
Ed LaFontaine ...truth seeker... diyAudio Member Join Date: Feb 2004 Location: where the Appalachians rise from the Blue Grass	Hi Maxhawk, I'm running stereo subs. Do I need to install the power supply on both boards? (I need one for each channel) Also, what is the "rated" output of the power supply? I may want to run my electronic x-overs from this power supply so I can have it all in one box. Thanks, Ed __________________ ...call me Ed...Special Ed... EnABL kit http://www.diyaudio.com/forums/swap-meet/119852-enabl-kit.html DCB1 parts http://www.diyaudio.com/forums/swap-...ml#post2361098

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
FS Linkwitz Transform Boards	woody	Swap Meet	4	26th March 2008 07:49 PM
Linkwitz Transform PCB help	mikee55	Subwoofers	2	3rd October 2006 09:36 AM
Two assembled Linkwitz Transform boards for sale V2.0	Maxhawk	Swap Meet	1	11th May 2006 02:42 PM
Two Linkwitz transform boards for sale	Maxhawk	Swap Meet	0	8th April 2005 09:17 PM
Which op-amp for linkwitz transform?	Hybrid fourdoor	Multi-Way	2	13th September 2003 12:22 PM

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read


	Please consider donating to help us continue to serve you. Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving

23rd February 2005, 06:06 PM	#12
Topbrass diyAudio Member Join Date: Jun 2004 Location: Boston	Looks good Rob, I'd be up for a couple boards too. Thanks, Mike

26th February 2005, 12:56 AM	#13
justinc diyAudio Member Join Date: Jan 2005 Location: boston	I will probably take a few also, email me

26th February 2005, 02:40 PM	#14
justinc diyAudio Member Join Date: Jan 2005 Location: boston	actually I went ahead and emailed you, I had a few questions, get back to me when u have a chance. thanks

1st March 2005, 02:30 PM	#15
Maxhawk diyAudio Member Join Date: Oct 2002 Location: Duluth, GA	I've received the boards and have some photos of one that's mostly completed. http://maxhawk.bravepages.com/projects/Linkwitz/

1st March 2005, 07:11 PM	#16
Maxhawk diyAudio Member Join Date: Oct 2002 Location: Duluth, GA	Here's pricing... $12 for just the PCB, or $25 for the kit. "Kit" means all the parts EXCEPT: Transformer Opamps Resistors/Caps for LT and subsonic filter I won't include these R's and C's because they will be different for every application. It's 8 resistors and 6 caps. $5 shipping (US only) Add $1.17 for Paypal fees (2.9% + 0.30). So one kit will be $25 + $5 + $1.17 = $31.17. Just the PCB would be $12 + 5 + .79 = $17.79. Getting parts from me saves you $5. I currently have a limited supply of extra boards. If it turns out there is a lot of interest, I can order more boards. Please email me directly if interested. -Rob

1st March 2005, 08:02 PM	#17
justinc diyAudio Member Join Date: Jan 2005 Location: boston	where can we get the needed Transformer and Opamps?

1st March 2005, 08:53 PM	#18
Maxhawk diyAudio Member Join Date: Oct 2002 Location: Duluth, GA	It's listed in the BOM on my page, but I'll repeat it here to save people the trouble: Transformer: Amveco TE70012, Digikey P/N TE70012-ND $10.76 Opamps: Burr-Bron OPA2134PA, Digikey P/N OPA2134PA-ND $2.63 You can use just about any dual opamp. The OPA2604 would work fine, TL072, and there are a bunch of National and Analog Devices parts that will work too.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)