PCBs for stereo bridged TDA7294 - Page 1
Forum section: electronics / general

author: donpetru
author_rank: Contributor
timestamp: April 18, 2015, 03:39:27 pm
content: 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 buy1 or 2 pcs., then price for one piece is5 USD(without shipping).If you buy3... 10 pcs., then price for one piece is4.5 USD(without shipping).If you buy over10 pcs., then price for one piece is4 USD(without shipping).If you buy a package that contains30 pieces PCB, then its price is120USD(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 contains50 pieces PCB, then its price is200USD(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). Paypal fee will be borne entirely by the buyer.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"

author: Richard Crowley
author_rank: Super Contributor
timestamp: April 18, 2015, 06:42:19 pm
content: The pictures look nice. But how is your board better (or even different) from the many that are for sale on eBay, etc?Since you chose to keep your details secret until after the sale, it makes it rather impossible to compare your product.It looks like your board is probably the reference design from ST, but without published details, it is a "black box".

author: mariush
author_rank: Super Contributor
timestamp: April 18, 2015, 08:03:36 pm
content: A bit off topic, but you should double check where you source your components.Those 470uF capacitors seem to be fake. They have the M logo for the Panasonic brand and they even try to make the fake better with the red ink code but the print quality is really bad and the vent shape is wrong.

author: donpetru
author_rank: Contributor
timestamp: April 19, 2015, 05:40:37 am
content: @Richard Crowley,I have used as a starting point this datasheet:http://www.st.com/web/en/resource/technical/document/datasheet/CD00000017.pdfThe 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.@mariush,I don't sell electronic components in this topic, I only sell TDA7294 PCB. Each user is free to use electronic components which wants.Later edit:I have attached below a PSU schematic for one PCB.

author: donpetru
author_rank: Contributor
timestamp: April 21, 2015, 07:48:42 pm
content: I posted the above offer on ebay if you want to buy PCB from there:http://www.ebay.com/itm/251927147687

author: donpetru
author_rank: Contributor
timestamp: February 19, 2017, 07:18:59 am
content: PCBs are no longer available (all were sold).

author: andybarrett1
author_rank: Regular Contributor
timestamp: February 20, 2017, 09:34:47 am
content: #NiceNylonCarpet