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-   -   Potential group buy for F5X components (http://www.diyaudio.com/forums/group-buys/205531-potential-group-buy-f5x-components.html)

ashaw 29th January 2012 03:06 PM

Potential group buy for F5X components
 
Is anyone here interested in a component group buy for components F5X Speaker protection board. You will need one of these kits of parts for each board and there are large savings to be had by purchasing together.

There are two sets of parts that I am proposing that we choose from. There is a set that contains the same parts that I used for my test board (more or less) which without the connectors will be $43 or a kit which uses other caps that did not exist at the time I designed the board that will be $34, this does not include the optional connectors, nor does it include the transformer for the mounting hardware, but it does include everything else.

As many of you have not done surface mount soldering before before, I will also offer for $7 basic set that includes 10g of fine 0.45mm Pb/Sn/Ag solder, and 1 meter of good quality solder wick, (this is the cost to buy this stuff).

You should also have a set of fine tip smd tweezers, a small 1.5-2mm chisel tip (or a hoof tip, or a well tip, NOT a conical tip) on your temperature controlled soldering iron and basic through hole soldering stuff, such liquid or tacky flux, 99% IPA and a stiff bristled brush. A hot air rework station like the ATTEN-858D that goes for about $60 on eBay will not go astray either. Do not skimp on the tweezers, go without a good set of SMD tweezers or use a conical tip you will wonder why this is so hard.

Happy Building
Alexis Shaw

EUVL 29th January 2012 03:23 PM

I think you will get more popular response by offering a build & test service.

;)


Patrick

TheShaman 29th January 2012 03:44 PM

People should really try and solder surface mount devices... It's not that hard and once you get the hang of it you don't want to go back to through-hole components.

Kits like this and this could help.

ashaw 29th January 2012 03:45 PM

Well if people are interested in that, I may offer it, however the price will be well above $100 per board due to the time involved in me soldering it, testing it and then there will be shipping.

Personally this is not that hard of a board to solder, and was actually my first SMD board myself.

It is actually not too bad, however you do need a couple of tools that having only done through hole, you might not have. but it is actually easier than through hole in the end.

pchw 29th January 2012 07:44 PM

One kit per channel? Count me in for 2 kits then or whatever number for a stereo F5X.

EUVL 29th January 2012 07:50 PM

One protection board per case (2 channels Dual Mono).


Patrick

pchw 29th January 2012 08:13 PM

Thanks, Patrick.
One kit for Fred then :-)

NicMac 29th January 2012 10:17 PM

I will take 3 kits - should be enough for me to make 2 functional boards:)
Thanks for your great effort on this project Alexis!

ramallo 30th January 2012 09:44 PM

I will take two kits

Thanks :-)

CanAm Man 30th January 2012 09:49 PM

Count me in, for two kits
 
...... will you be starting a spreadsheet, or is this sufficient RSVP back to you?

CanAm Man = Ken W. (Colorado Springs, this week....!)

P.S. For those uncertain about soldering SMD parts, there are several good tutorials on Youtube........


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