Originally Posted by N4RQ
The Icom AG-series of pre-amps has the 8 volt regulator INSIDE the Icom outdoor VHF or UHF pre-ampliifer
Those Icom manuals and schematics (for AG-25 and AG-35 pre-amp) are on MODS.DK
The files are not exactly labeled properly, but I assure you the information is there!!
My concern with outdoor (mast mounted) pre-amps for VHF/UHF has been proper sequencing/timing to avoid
transmitting into the pre-amps.
During my tests with an Icom VHF pre-amp (AG-25 currently on mast) with my Yaesu, it appears to work properly.
eham.net Reviews of the Icom AG-25
BTW, the transistor used in the Icom AG-35 pre-amps : 3SK121
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