This 1296MHz PA is based on W6PQL’s published information and available to purchase boards from his site. It uses two XRF-286 MOSFETs in parallel and achieves 150+W output with 10W drive. The internal layout is copied from the available photos from W6PQl’s site. Under the heatsink a Meanwell 27V PSU powers the PA from 220V AC. A fan mounted behind the front face provides the necessary airflow over the heatsink fins with the use of an air duct. The hot air is being expelled from the enclosure’s back opening. A modified Amp meter provides an indirect display the PA’s output power by measuring current draw from the PSU. The internal sequencer board is located at the side of the heatsink. It handles the PA’s internal sequencing and in the future it will be used to control external devices (preamp etc.). The input/output N type relays are made by Amphenol and have 24V coils. RG402 coaxial cable has been used internally. The enclosure is made from 1mm sheet metal painted black.