Good Morning all, Thanks to all who have ordered any of the 12v 5AH batteries. There are lots left if you want ... 8-)
I promised a description and price on the PCB and parts kit - here it is. The Mike Bryce charger board has a bridge and filter capacitors so you can feed it either AC directly from a transformer or DC, an LM317 regulator, diode switching (batt or ac to load), two LED indicators, and a terminal strip for power I/O. Its still a pcb though, without a case. It can handle an amp to a load and charge the battery concurrently, the diode switch the batt to the load when AC/DC power is lost. The PCB is $12 from me or from Mike Bryce, the boards will be ready to ship in a couple weeks. Parts kits, including the pc mount TO220 heatsink, schottky diodes, and terminal strip is $11. Small Flat Rate Box is 4.95, so total would be $28.00 ea I'll include a copy of the QST article, some recommendations for 2~3A 16v AC wall warts (AllElectronics, Marlin P Jones, etc) if you like. For the gang charger on this project I've just cranked up the Alinco supply to 15.5 and with the schottky diodes I can still limit/charge at 13.5 out of the regulator. But for long term use, I'll be using an AC input for better regulator head room. Summary PCB only $12 + 4.90 $ 16.90 PCB+Parts+shipping $ 28.00 PS if you ordered 2 or more your only paying one shipping cost ! Address in QRZ is good, checks (pretty much anything...) ok PayPal is nice nskousen (at) ecsecurityinc (dot) com Thanks all Niel WA7SSA ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
