[HomeBrew] Amp kit or project for QRP rigs?

[Deon Erwin]

Hi Will

There are several interesting articles on the Motorola website about HF and
VHF amplifier designs.  Use the Motorola website search facility to locate
their Application Notes and Engineering Bulletins.

The 1985 ARRL Handbook published a project for a 1.6 - 30MHz 140W linear
amplifier.  This project is based on the Motorola Application Note AN-762.
The article contains schematic diagrams, construction details, PCB layout,
PCB templates and photographs of spectrum analyser performance tests.
Design information is included for low-pass filters to allow band switching
from 10 - 160m.

Communication Concepts Inc, Ohio, have a kit of parts for the amplifier
mentioned above.  They also have kits of several other amplifier designs by
Motorola and all the relevant Motorola Application Notes and Engineering
Bulletins are published on their website.  Visit them at
www.communication-concepts.com

Also, visit the Elecraft website for superb QRP transceiver kits at
www.elecraft.com.

Hope you find what you are looking for.

Regards
Deon ZR1DQ
.
----- Original Message -----
From: Will White <googlyelmo@earthlink.net>
To: homebrew <homebrew@mailman.qth.net>
Sent: Friday, July 26, 2002 9:50 AM
Subject: [HomeBrew] Amp kit or project for QRP rigs?


| ** HOMEBREW REFLECTOR - Please do NOT cross-post messages to multiple
mailing lists on the "To:" or "CC:" line of the e-mail message. **
|
| I am searching for either a kit, or a well-documented project (including
PCB
| artwork if possible) for building a small linear amp that I will drive
with
| various 1-5W monoband CW kit rigs.
|
| I want complete bandswitching 80-10M (10M coverage not absolutely
essential;
| 160M would be good to have also, but also not essential), at least 50W out
(100W
| would be even better, but no more than that; I will use the amp almost
| exclusively for CW, but it would be nice to have SSB also [there is only
one QRP
| SSB kit on the market at the moment, I think], though not strictly
necessary),
| in a clean, robust package.
|
| In a recent (1998-2000?) ARRL Handbook there was such a project, I know,
but I
| have criticisms/reservations about that design and the documentation, so
would
| like to hear about alternatives that are available. Please direct me to
sites,
| books, old QST/CQ/73s, or let me know what you have![?] Thanks, hopefully!
|
| --
| Will White, KD7BFX
| Seattle WA US
| King County, Grid CN87tq
| ITU Zone 6, CQ Zone 3
| ***************************************************
| "The wireless telegraph is not difficult to understand.
| The ordinary telegraph is like a very long cat.
| You pull the tail in New York, and it meows in Los Angeles.
| The wireless is the same, only without the cat."
|                                                       - Albert Einstein
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