Found an impressive HF PA, HVLA700Q, looks ideal for QRP rigs like K3/10, KX3 as requires only 10W drive for 700W output. They give attractive 5 year guarantee. Is it a silent PA, any experience? Would be nice having a dBA noise specification with max. power of the factory built PAs. http://www.rf-power.info/hvla700en.html 73, István, HA4ZD