LYNX Power Amp PCB Group Buy interest

[imackin]

i would be interested in 4 PCBs. also would be interested in some psu pcb's

 

[Jan Dupont]

Now 34 PCB's.
And two interest for PSU PCB's

 

[builderandy]

I'm also interested in psu board. Do you have a schematic/layout suggestion for the psu board?

/Andy

 

[Landoctor]

PSU Board

Jan,
I think a PSU board would be a good idea, as long as it's more than the standard "minimalistic" PSU boards we see around here alot.

Maybe something that would accomodate (and utilize!) the MUR3020, 3060, etc rectifiers. (There are some PSU boards that have the mounting holes for them, but don't utilize them correctly/completely!).
There could possibly be mounting holes for screw type mount filter caps as well as the normal snap-in. Either for mounting directly to the board or wire connections. Nice mounting points for power chokes. Enough room for a complete CLCRC or similar PSU, etc.

These were just brainstorming idea's so nothing that's been totally thought out. I am just hoping to stimulate some discussion on creating a really nice power amp PSU board.

Thanks,
Donovan

 

[gary s]

Hi Jan

Thanks for the thread. I would like to express my interest for 4 off Lynx V3.0 PCB's and also PSU PCB's to build mono bloc amps.

Do you have link to PSU schematic or could you post it, thanks.

Regards

Gary..

 

[Jan Dupont]

Now 38 LYNX PCB's

PSU board;
I normally run this amp with a traditional PSU consisting of toroid, diode bridge and 20-40,000uF per channel.

I think it would better to start a new thread only for the PSU board group buy, as it is a new project and because others who have no interest in the LYNX amp could join in......

Would someone here start and take care of this thread (my spare time is limited at this moment) ?
I will then make the layout (and have the PCB made) according to what have been decided

 

[Carl_Huff]

Sure Jan,

I'll give you a hand. The current LYNX PCB count is 38!

Best Regards,
Carl Huff

 

[Jan Dupont]

Thanks Carl

 

[steenoe]

I can use 2 more boards, so make that 8 channels for me.

 

[Jan Dupont]

Count is now 40.

I never did put a linke here for the PSU PCB group buy:
http://www.diyaudio.com/forums/showthread.php?s=&postid=1423821#post1423821

 

[housing]

I happen to find 8 pairs of 2SA1943(O) and 2SC5200(O) on the shelf. So I'll take a pair of the PCB if the price is right.



Count is now 42.

 

[gary s]

Hi Jan

As the Lynx amp PCB count is up to 42 boards, how long will you keep this open before taking a commitment from everyone involved.

Anyone interested should indicate their interest here in this fine design.

Cheers

Gary..

 

[Jan Dupont]

I will properly take 8-10 PCB's my self, so the count is now 52.

I will get a price quotation for 50 PCB's, and return here with the price

If there comes further orders afterwards, it can only make it cheaper for us all

 

[Jan Dupont]

Quotation

Here you got the price for the PCB's:
Standard FR-4, 1.6mm/2x35um Cu, gold-plated

Price per board
@ 50 pcs. = €7,50/$11.00
@100 pcs. =€5,50 / $8.00

In the price are calculated fabrication costs and my expences (No profit for me !!!).
Also included are the shipment costs for the boards going to the US, and distributed there by Carl_Huff (thanks Carl ).

Please note that shipment (from Denmark or USA) and PayPal fee are not included in the price.

Deadline for corfirming your orders and for new orders are Februrary 25th.
I will then contact each of you per email with further details.

Expected shipment date from Denmark is March 11th.

Payment by Paypal!

 

[housing]

Hello Jan,

How much will be the shipping cost to Hong Kong for two boards?

Thank you very much for all your efforts!

 

[Jan Dupont]

Here is some price examples for the PCB snail-mailed in an envelope (up to 500 gram and not registered mail):

Inside Denmark: €3,50/$5.00
Other Europe: €6.00/$9.00
Outside Europe (exept USA): €8.00/$12.00

Carl_Huff;
Would you please inform the members the costs in USA

 

[Carl_Huff]

Sure,

I just checked to confirm. Shipping a 500 gram (or less) package anywhere withing the continental US from my address will be $5.00. That includes the shipping envelope and all postage. The price as quoted is USPS Priority Mail using their 'flat rate envelope'. Delivery in 2 days.

Do we know the shipping weight of each PCB?

Best Regards,
Carl Huff

 

[Jan Dupont]

Sorry but I don't have a small scale weight at home, however how much can 153cm2 (app. 23.56 square Inch) 1.6mm FR-4 board weigh ??

 

[peranders]

Jan, you can check how much my pcb's weight but notice that almost everyone has 50 um copper and some 95 um.

My Gainclone pcb is 152 x 120 mm and weights 74 g.

 

[Jan Dupont]

Thanks peranders

Weight per LYNX PCB would then be 60 g.