I have bought from an Australian ham pair of assembled 4Z4RB pallets with SFR 1930Q Fets I cannot find any information on the boards or the fets (datasheet) Have searched web to no avail Any help very appreciated Regards rob Robert Ward VK2TAX VK2RS. WIA. RAOTC. ARRL. GCARS. 33 Border Crescent Pottsville NSW 2489 0429 72 1561