I made some PCBs with two TDA7294 in stereo or bridged mode. I posted some pictures below.
The selling price of these PCB is as follows (please note the price is for PCBs without electronic components):
If you buy 1 or 2 pcs., then price for one piece is 5 USD (without shipping).
If you buy 3... 10 pcs., then price for one piece is 4.5 USD (without shipping).
If you buy over 10 pcs., then price for one piece is 4 USD (without shipping).
If you buy a package that contains 30 pieces PCB, then its price is 120USD (included free shipping with the "Romanian Post" - is the same with FREE Economy Int'l Shipping - to the USA and European Union countries).
If you buy a package that contains 50 pieces PCB, then its price is 200USD (included free shipping with the "Romanian Post" - is the same with FREE Economy Int'l Shipping - to the USA and European Union countries).
I accept other shipping methods including DHL if you want it (but that means a higher cost of transport).
PCB Payment will be made in advance in pay-pal account (I will communicate it to you via private messaging of this forum).
After you will pay, I will send an e-mail (which you will have to communicate me) with a PDF file containing the circuit diagram and parts list required for assembling PCBs.
If you need further information, please ask in this topic.
Regards,
"donpetru"
The selling price of these PCB is as follows (please note the price is for PCBs without electronic components):
If you buy 1 or 2 pcs., then price for one piece is 5 USD (without shipping).
If you buy 3... 10 pcs., then price for one piece is 4.5 USD (without shipping).
If you buy over 10 pcs., then price for one piece is 4 USD (without shipping).
If you buy a package that contains 30 pieces PCB, then its price is 120USD (included free shipping with the "Romanian Post" - is the same with FREE Economy Int'l Shipping - to the USA and European Union countries).
If you buy a package that contains 50 pieces PCB, then its price is 200USD (included free shipping with the "Romanian Post" - is the same with FREE Economy Int'l Shipping - to the USA and European Union countries).
I accept other shipping methods including DHL if you want it (but that means a higher cost of transport).
PCB Payment will be made in advance in pay-pal account (I will communicate it to you via private messaging of this forum).
After you will pay, I will send an e-mail (which you will have to communicate me) with a PDF file containing the circuit diagram and parts list required for assembling PCBs.
If you need further information, please ask in this topic.
Regards,
"donpetru"
Attachments
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The schematic will be available after buying PCBs and the schematic does not differ very much like that of TDA7294 datasheet.
OK.
Will have to look at the datasheet then as I always wanted an easy bridged amp project.
Good luck.
M.
Will have to look at the datasheet then as I always wanted an easy bridged amp project.
Good luck.
M.
@maxlorenz,
Yes, you can consult the tda7294 datasheet but that is not enough, because the PCBs can configure "stereo" and "bridged" with the help of jumpers. These details are in the PDF file that will be sent after you buying PCB.
@irribeo,
please be more specific ??? Later edit 1: I understand, you mean the 470uF capacitors. Images of the components on the PCB are just informative. Remember, I only sell PCB without parts. Each user is free to use electronic components which wants.
Later edit 2: I have attached below a PSU schematic for one PCB:
Yes, you can consult the tda7294 datasheet but that is not enough, because the PCBs can configure "stereo" and "bridged" with the help of jumpers. These details are in the PDF file that will be sent after you buying PCB.
@irribeo,
please be more specific ??? Later edit 1: I understand, you mean the 470uF capacitors. Images of the components on the PCB are just informative. Remember, I only sell PCB without parts. Each user is free to use electronic components which wants.
Later edit 2: I have attached below a PSU schematic for one PCB:
Attachments
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I guess the makers know better how to optimize the amps...😕
I want them for bridged amp.
I need 4 PCBs. Romanian Post is good.
Thanks.
M
I want them for bridged amp.
I need 4 PCBs. Romanian Post is good.
Thanks.
M
@maxlorenz,
With Romanian Post a package sent to Chile cost about ~15USD + 4 x 4.5 = this would mean a total approximately equal to 33 USD (for 4 pcs. PCB whit ship included).
If you agree with this total, send me your shipping address for me to calculate exact shipping cost.
By the way, I believe the Romanian Post is the same as Chile Post:
CorreosChile
With Romanian Post a package sent to Chile cost about ~15USD + 4 x 4.5 = this would mean a total approximately equal to 33 USD (for 4 pcs. PCB whit ship included).
If you agree with this total, send me your shipping address for me to calculate exact shipping cost.
By the way, I believe the Romanian Post is the same as Chile Post:
CorreosChile
Dear Donpetru,
Parts start to arrive to build the bridged TDA7294 amp.
A question in relation to JP2 in bridged mode: if I connect int-Ro to ground, can I use a single ended source? 😕
Thanks.
M.
Parts start to arrive to build the bridged TDA7294 amp.
A question in relation to JP2 in bridged mode: if I connect int-Ro to ground, can I use a single ended source? 😕
Thanks.
M.
Hello, sorry for the delay, but I was on vacation and just now I accessed this thread.
For a quick response, please use my email address: donpetru [at] gmail [dot] com
@maxlorentz, I'm glad you liked PCB's.
The result is the same if you go jumper to the ON position of connector JP2 - OR - mount another jumper on INT-R entry. But my advice is to use JP2.
And please follow the specifications from the file that I sent to you.
I have attached a few pictures below with 2xTDA7294 PCB during the test.
For a quick response, please use my email address: donpetru [at] gmail [dot] com
@maxlorentz, I'm glad you liked PCB's.
The result is the same if you go jumper to the ON position of connector JP2 - OR - mount another jumper on INT-R entry. But my advice is to use JP2.
And please follow the specifications from the file that I sent to you.
I have attached a few pictures below with 2xTDA7294 PCB during the test.
Attachments
updated prices
If you buy 1 or 2 pcs., then price for one piece is 4 USD (without shipping).
If you buy 3... 10 pcs., then price for one piece is 3.5 USD (without shipping).
If you buy over 10 pcs., then price for one piece is 3 USD (without shipping).
If you buy a package that contains 30 pieces PCB, then its price is 90USD (included free shipping with the "Romanian Post" - is the same with FREE Economy Int'l Shipping - to the USA and European Union countries).
Free PDF documentation included in the price - is sent via email after order confirmation.
If you buy 1 or 2 pcs., then price for one piece is 4 USD (without shipping).
If you buy 3... 10 pcs., then price for one piece is 3.5 USD (without shipping).
If you buy over 10 pcs., then price for one piece is 3 USD (without shipping).
If you buy a package that contains 30 pieces PCB, then its price is 90USD (included free shipping with the "Romanian Post" - is the same with FREE Economy Int'l Shipping - to the USA and European Union countries).
Free PDF documentation included in the price - is sent via email after order confirmation.
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