[Amps] Henry 3002 help

[Carl]

If the amp Tunes and Loads without reaching the control limits the only 
difference will be in the tank Q which may impact efficiency a bit.

The only way to be sure is to ask around on various forums for someone to 
take measurements of the plate line.
The input circuit is adjustable if needed.

Carl
KM1H




----- Original Message ----- 
From: "Donald Fox" <taurusshoguy at yahoo.com>
To: <amps at contesting.com>
Sent: Wednesday, January 30, 2013 8:48 PM
Subject: [Amps] Henry 3002 help


> Gentlemen:
> I cannot recall if I had sought advice regarding this very nice high power 
> 8877 VHF console, so here goes.
>
> I picked it up some time ago as a project because the price and condition 
> were excellent. Interestingly, it was set up by Henry as a paging 
> amplifier on 151.995.
> My research has indicated that the output section appears to be the same 
> as the 144 mhz version. I have seen 900 watts out with 35 watts input on 
> 146 mhz. Although the input SWR seems to be good also, I would like to 
> verify proper input/output resonsance with an SWR analyzer fed into the RF 
> deck with out voltage applied of course.
>
> Since it was set up as a paging amp outside of the 2 meter band, there was 
> no low pass output filter to be had with it. I have the schematic for that 
> along with pics when the time comes.
>
> Any advice to guide me on insuring proper input/output resonance would be 
> appreciated.
> Offlist replies are welcome also.
>
>                                Don   N8ECH
>
>
>
>
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