Lex, Maybe you want to consider buying your pcb material at eBay. That's where I've gotten mine. There are sellers for just bare board stock as well as presensitized. Here's the seller I've dealt with: abcfab ( http://myworld.ebay.com/abcfab/&_trksid=p3984.m1439.l2754). Domestic USA. 99.9% rating. Very fast shipment. I don't know him or anything, but I like to hear about good sellers myself. I've given passing thought that if I wanted to retrofit a single-sided board with a ground plane that I could use adhesive-backed copper-foil tape. Some is made explicitly to be conducting (for EMI shielding, etc.). Some might be found at craft stores, especially ones that carry stained-glass supplies. Care would be needed with this source that the material is 1) really copper, and 2) it doesn't have a non-conductive coating, though if there's real copper underneath some of the coating could be sanded off so connections can be made. I think it could be directly solderable, though since it would have a sticky back soldering would need to be fast. It fast enough anyway. Besides, it wouldn't matter if the adhesive got warm. It'll cool off. I guess one could also use screws and lugs to make connections, again mindful of any coating. In addition to pcb uses, I'm going to try using the foil tape to shield the inside of a plastic enclosure, jumpering between the pieces. Wouldn't have to be copper. Could be aluminum, tin, etc. 73, Todd ------------------------------------------------------------------------------------ K7TFC / Medford, Oregon, USA / CN82ni / UTC-8 ------------------------------------------------------------------------------------ QRP (CW & SSB) / EmComm / SOTA / Homebrew / Design On Fri, Mar 22, 2013 at 5:38 AM, lex <lex_allen99@...> wrote: > ** > > > Todd: > > I was not anything that super important. The thought of making PCB's on > demand and trying to save some $$$ while doing so. > I few boards I used to buy and build are no longer being offered. The > person who was suppling them has sold out and don't want to buy more. I > fully understand his position, why spend 51 for 3 boards? > > That was it. just maybe better to buy two sided and just go with it. > > > [Non-text portions of this message have been removed]
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Re: [Homebrew_PCBs] Re: Copper Foil
2013-03-22 by Todd F. Carney / K7TFC
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