[amsat-bb] Re: Devices in Icom preamps AG-25 AG-35

[George Henry]

Correction:  3SK121Y, not 2SK...

Sorry....


George,KA3HSW


----- 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.
>
> 73,
>
> Mark L. Hammond  [N8MH]
>