"VHFRadioBuff" wrote in message
...
The amp accepts 1-2 watts drive to produce 35-40
watts output. The amp runs class AB and is bandswitched.
Operates 160, 80, 75, 60, 40, 30, 20, 17, 15, 12 & 10
meters. New to build IV is tha addition of 60 meters.

Maybe I'm mistaken, but aren't commercially made amps subject to some
limitations, like it can't have the ability to work 15 - 10 meters out of
the
box (The user has to enable that ability) and aren't they required to use
a
higher input to work?

Or is that only limited to amps of a certian output and higher? I noticed
this
amp does 35 - 40 watts (A QRP amp, obviously)
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
73! de Andy KC2SSB - WPYI880 (GMRS)
Beachwood, NJ USA! Grid FM29vw
http://vhfradiobuff.tripod.com

You're not mistaken. The THP amp *is* a commercial
amp but the K5OOR amp is NOT. It's a kit, and by
FCC regs you can build one a year for your personal
use. Now as to commercial amps, I believe the regs
atste that it must have a drive requirement of 50 watts
minimum and can't work 10 meters out of the box (15
meters is OK)

Virgil, K5OOR, might be able to clarify the matter
further as he seems to have done research on it.

Opinion from the FCC on the project:

An opinion from the FCC was sought concerning conformance to the rules and
regulations. Here is their response:

"The main question in your letter seems to be whether a group of amateur
radio operators may pool their need to buy electronic parts and components
so that each member of the group may build a project for their amateur radio
station. The project is an amplifier that could be used with QRP
transmitters to increase the station power to 35 watts RF output.

Section 97.315(a) provides that no more than 1 unit of 1 model of an
external RF power amplifier capable of operation below 144 MHZ may be
constructed or modified during any calendar year by an amateur operator for
use at a station without a grant of certification. The intent of the rule
was to accommodate amateur radio operator's desire to be able to build one
amplifier per year, or modify one amplifier per year, for use at his or her
station, but to prevent an amateur radio operator from mass marketing
amplifiers.

Based on the description of the project that you have provided, because the
amplifiers are being constructed by members of your group individually, they
would be permitted under this rule. The rule does not prohibit a group of
individuals from coordinating the purchase of parts to obtain a better
price, or otherwise address how parts are obtained. Rather, it allows
construction (or modification) of one external RF power amplifier per year
capable of operation below 144 MHZ, provided this construction or
modification is done by an amateur radio operator and the amplifier is for
use at a station.

The rule section you inquire about, Section 97.315(b) applies to any
external RF power amplifier or external RF power amplifier kit manufactured,
imported or
modified for use in a station or attached at any station. From your
description of the project, it does not appear that the coordinated buying
or distribution of parts among members of the group results in an external
RF power amplifier kit that is "manufactured, imported or modified for use
in a station." Rather, the amplifiers are being constructed by amateur
radio operators for use as part of their amateur radio stations and,
therefore, my view is that Section 97.315(b) does not apply."

Hope that helps Andy....

73's de KG0WX