Eduardo, Here is some info I've dug up. 2SC2290 was manufactured by Toshiba link http://www.toshiba.com/taec/components2/Datasheet_Sync//63/21686.pdf 2SC3240 was manufactured by Mitsubishi
Turns out that 2SC2290A, SD1487 AND MRF454 are good replacements for 2SC2290. MRF454 is manufactured by MA-COM. RF Parts http://rfparts.com/transistors.html shows both 2SC2290A and MRF454 as available. I did not find any information on the 2SC3240 but there might be a close replacement on the RF Parts site. Regards, Jarek, KB9IIZ ---------------------- Hello dears freinds : I write to you to ask for a big favor. I own an old YAESU FT-747 which final RF power transistors 2SC2290 or 2SC3240 were damaged. I have not been able to find them, allthough I have searched ansiously. A friend of my city gives myself two trasistores of low power and alone I can to transmit with 45 watt in these moments I need you to help me, for that Radio is my unique HF Station. If you could help me find the two transistors I would be profoundly thankfull. Best regards for you and your family. 73.- Eduardo CO8LY _______________________________________________ Sent via [email protected]. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
