Archive of the former Yahoo!Groups mailing list: Homebrew PCBs

On 07/21/2010 09:29 AM, designer_craig wrote:

> I have very good luck with elctroless tin. The formula I use came from the September 1971 issue of Ham Radio magazine.
>
> .5g Stannous Chloride
> 2.0g Thiourea
> 3.0g Sulfamic Acid
> 100.0 mL Distilled water

I have found the following sources, could you have a look and see if
they look OK?

100g Stannous Chloride, $8.46
http://www.boilerandcoolingwater.com/Stannous_Chloride_Powder_p/sc7555-j.htm

1lb Diethyl Thiourea Premium Quality, $14.00
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=270570789001&rvr_id=&crlp=1_263602_263622&UA=L∗F%3F&GUID=989a408611e0a0aad4e6a4c6fc0c48ad&itemid=270570789001&ff4=263602_263622

1lb Aqua Mix Sulfamic Acid Crystals, $4.91
http://www.aquamixdirect.com/servlet/the-137/Aqua-Mix,-Sulfamic,-Acid,/Detail

And, I renew my interest in some pictures of the results you had...

bye!
as