Photos of older version https://picasaweb.google.com/m.kolinsky/KOLRSHPTX12
Everything is basicaly same as other OpenLRS transmitters.
Main features:
- Board fits in this nice (expensive) aluminum box http://www.tme.eu/en/details/akg-55-24-100-me/enclosures-with-panel/fischer-elektronik/akg-55-24-100-me/
- Power switch
- Two power supplies possible, Traco or Recom 7805-like DCDC or cheap 3A DCDC http://www.ebay.com/itm/Mini-3A-DC-DC-Converter-Adjustable-Step-Down-Power-Supply-Module-Replace-LM2596-/390877057320
- Adjustable voltage with cheap 3A DCDC = adjustable RF output power
- Reverse polarity protection
- Power from USB-serial may or may not be connected
- Standard 6pin ISP header
- Improved cooling of RFM23BP
- Open source!