LYNX Power Amp PCB Group Buy interest

[pedroskova]

...received safe and sound. Thanks Carl and Jan.

 

[WJH]

The boards arrived this afternoon - thanks Carl for taking care of the US contingent. Thanks Jan for dealing with the email hastle, I would have missed out on these excellent boards.

 

[wendell]

my boards came in today, Thanks Carl! Thanks you Jan!

 

[Cambe]

Thank you Jan and Carl!
The PCB's arrived today.
Cambe

 

[ipolyakov]

Jan and Carl,
Got my boards today. They look nice!
Thank you very much,
Igor

 

[Landoctor]

Nice Job!

Thank you Jan, Carl and Carl's wife!

The boards look great Jan, I can't wait to get started on them.

Carl, please thank your wife for the excellent packaging of the boards. I really appreciate the steps she/you took to protect the boards during shipment. They arrived in great shape. Thank you also for the quick turnaround shipping.

Thanks again,
Donovan

 

[Carl_Huff]

You are welcome fellas ...

It was a pleasure working with you Jan.

Besides, it was easy for me. My wife did all of the work!! Ha,ha

 

[Jan Dupont]

Thanks to Carl for handling the US distribution
Seems all went smooth

 

[MEGA_amp]

Thank You Carl and Jan for your outstanding efforts!! The boards look great!! Time to get to work.



-john

 

[Ed LaFontaine]

My boards were here when I arrived home after work. Thanks Jan & Carl.

 

[lesherons]

Jan & Carl: The boards arrived yesterday. They are absolutely superb. Many thanks to Jan for initiating this project and designing the boards and to his Daughter for packing them. Also many thanks to Carl and his Wife for handling the US distribution. This has been a very superior effort in all respects. Best regards, HK

 

[ManUtd]

OK then...

I have received several wishes for a group buy for the LYNX PCB, so I will make this ONCE !!!

If you are really interested, please state so in this thread.
Price unknown until exact no. are known, but price per PCB @ 100 pcs. would be app. $13.00 or €9.00 + postage.

PCB's will be FR-4, 1.6 mm, 50 um copper, gold plated.

If there are many interested from the US, I hope someone "over there" would participate and distribute the PCB's there (save us all some costs)

Please note! This is just to check the interest.
No obligation before exact price is known

Links:
The PCB
www.audio-circuit.dk/PDF/LYNX v3.0 PCB.pdf

The BOM
www.audio-circuit.dk/PDF/LYNX v3.0 BOM.pdf

Please,could i also get some boards 4 x pcb?

 

[Jan Dupont]

ManUtd;

Sorry but this Group Buy has ended.....
PCBs has been made, and distributed to the Group Buyers.

However I will have a small qty made in a few weeks, but then the price is quite different. Please see the fronpage of my website: www.audio-circuit.dk

 

[whoandcar]

Hi, Jan!
Congratulations for such a great design!
only I see a minor issue: you seem to draw the electrolytics backwards? I always thought the thick line was the positive!
Regards

 

[wendell]

the thick line is negative

 

[whoandcar]

the thick line is negative

Not according to wikipedia (and others):

http://en.wikipedia.org/wiki/Capacitor
http://en.wikipedia.org/wiki/Image:Polarized_capacitor_symbol_3.svg

 

[peranders]

Hi, Jan!
Congratulations for such a great design!
only I see a minor issue: you seem to draw the electrolytics backwards? I always thought the thick line was the positive!
Regards

I must also say that they are a bit backwards. Normally you see a filled (black) line as negative and unfilled as positive or two lines with a + as a notation for positive.

 

[whoandcar]

Yes, I meant unfilled rectangle.

 

[Jan Dupont]

We have had this discussion 2 or 3 years back here....

I agree that the common symbol for a pol. cap is with a filled thick black line as negative.

However I (and proberly most other danish students at that time) was teached this symbol I use 25 years ago at the Tech. Schools.

Sorry but it has stuck to me ever since, and is luckely also the common symbol in the Easy-PC software I use from www.numberone.com

 

[whoandcar]

There is no problem with the symbol itself, it is abolutely correct. However, I think the polarity is inverted in your schematics! And that can be dangerous!
I always saw the thick white line (or the empty rectangle) as positive, and the thin line or the thick black one as negative: