For the AG-35, it's a 2SK121Y. Not sure about the AG-25. As others have mentioned, because of the proximity of the relay, one of the easiest ways to replace it is to cut the leads on the old device, then bend & trim the leads on the new device to "straddle" the old leads & solder away. Way easier than removing the relay...
George, KA3HSW ----- Original Message ----- From: "Mark L. Hammond" <[email protected]> To: <[email protected]> Sent: Wednesday, March 17, 2010 5:29 PM Subject: [amsat-bb] Devices in Icom preamps AG-25 AG-35 > Hello all, > > We either had two bad preamps to begin with, or they became casualties > during transport to K4T, but regardless--the Icom preamps we took appear > to have bad GAsFET devices in them. > > Can anybody tell me what is the device in each unit (AG-25 and AG-35)? > And are they something a skilled ham can reasonably replace? > > Specific suggestions for a parts source will be appreciated, too. > > 73, > > Mark L. Hammond [N8MH] _______________________________________________ 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
