[amsat-bb] Re: Devices in Icom preamps AG-25 AG-35
ka3hsw at att.net
Wed Mar 17 20:54:41 PDT 2010
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...
----- Original Message -----
From: "Mark L. Hammond" <marklhammond at gmail.com>
To: <amsat-bb at amsat.org>
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.
> Mark L. Hammond [N8MH]
More information about the AMSAT-BB