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Old 2nd October 2011, 05:27 PM   #21
amc184 is offline amc184  New Zealand
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They're USD3.00 each. The AC and DC powered versions share the same PCB.
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Old 2nd October 2011, 05:55 PM   #22
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Hi Anton
Count me in for 2 bare boards.
Thanks
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Old 3rd October 2011, 02:09 AM   #23
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Hi Anton

I am in for 2X PCB as well.

Thanks.
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Old 3rd October 2011, 02:23 AM   #24
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Hi Anton,
One DC kit and one pcb.
Thanks.
Ian
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Old 3rd October 2011, 05:14 AM   #25
amc184 is offline amc184  New Zealand
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Thanks for the support guys.

@iancanada: Just to be clear, the kit includes a PCB. Were you wanting a kit (including a PCB) or a kit and a second bare PCB?
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Old 3rd October 2011, 10:59 PM   #26
Ryssen is offline Ryssen  Sweden
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Im in for 4 Bare PCB, about USD3.00 each
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Old 4th October 2011, 12:12 AM   #27
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Quote:
Originally Posted by amc184 View Post
@iancanada: Just to be clear, the kit includes a PCB. Were you wanting a kit (including a PCB) or a kit and a second bare PCB?
Thanks Amc184.
Yes, I wand a kit and a second bare PCB.
Have a good night. Ian
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Old 4th October 2011, 06:11 AM   #28
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I will buy 6 pcbs
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Old 4th October 2011, 06:50 AM   #29
tome is offline tome  Macedonia
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Hi Amc.
Put me on list for 4 bare boards.
Do you have in your plan to do a smd version ?
thanks
tomas
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Old 4th October 2011, 07:47 AM   #30
amc184 is offline amc184  New Zealand
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I've done a more careful check, and am now able to give more solid postage costs. They are slightly higher than I estimated at the start, but not by too much. The minimum charged weight for an airmail parcel is 200g. A DC powered kit with packaging weighs about 100g, an AC powered kit with packaging weighs about 200g.

A 200g parcel costs USD5.50 to Australia, USD8.00 to the South Pacific, USD9.20 to East Asia and North America and USD10.40 to the rest of the world. A 400g parcel costs about half as much again. You can browse a full table of rates here. You can find out exactly which zone you are in here.

I've also noticed that there is an error in the bill of materials. The Farnell part number for the 47R resistors (R107, R108 and R204) is actually for a 47kR part. The correct part number is 1565312, a 39R part (Farnell don't stock a 47R part in the Welwyn MFR3 series). This is the value I used in most of the prototypes. I will post an updated bill of materials and schematic soon.

@tome: No, I don't. I specifically avoided using SMT components because of how much harder it is to solder them. Hand soldering of SMT is possible if you're skilled and have a steady hand, but not enjoyable. That said, an SMT version would be even smaller.
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