OSHpark is the best I've seen on small runs: ?
For $5 per square inch, you get three double sided boards with soldermask and silk at 6 mil design rules. ?The BItx40 at 4.5x5 inches would cost $5 * 4.5*5 = $112.50, or $37.5 per board. ?But the bidi amps are one square inch each, so could get three of them for a total of $5.
Could go to 0805 or 0603 or 0402 parts to drastically reduce the size of the Bitx40 (or uBitx). ?Take a look at 0201's if you are especially cheap and masochistic, but then you'll want access to a good binocular microscope.
On Sat, Apr 8, 2017 at 06:56 am, Jack Purdum wrote:
Finally, you could have a thru-hole board manufactured. I've done this with the Forty-9er and antenna analyzer project and if you have enough boards done, the cost isn't that bad.
?
