Base Kit: PCB, components,
30 Meter Superhet Transceiver
Back in the 1990's homebrewers wanted a fun transceiver project that
was elegant-yet-simple. Dave Benson offered to update and improve
his classic 40-40 CW QRP transceiver ... and the "SW"-series was
born, along with terrific instructional design material that became
known as "The Elmer 101 Course."
when we (CWTD) wanted to run a series of episodes on the Elmer 101
course, K1SWL again stepped up and empowered us to produce a limited
run of his SW30+ design ... for all CWTD followers to learn from by
building and testing his still-popular little rig!
Single board design creation of Dave Benson, K1SWL
Measures 2.8” x 4.0” (7 x 10 cm)
VFO operation with a 35-kHz tuning range (10.100-10.135 MHz)
~2.0 Watts RF output
QSK (full break-in) operation
19ma (Rx), 300ma (Tx) at with 12V supply
Original Kit Manual
AA0ZZ Enclosure (optional)
AA0ZZ PCB Enclosure
When we contacted
Craig AA0ZZ for
some ideas on how to provide a unique and attractive enclosure for
the CWTD SW30+ kit, he said: "Man, do I have a great idea!"
What resulted is this beautiful
enclosure made entirely of pc boards with red soldermask and white
silkscreened labels. Interlocking pieces are quickly soldered
in minutes and the top piece screws in place to form a solid, 5" x
4.5" x 1-3/4" enclosure specifically designed for the SW30+
Gee, wonder how many accessories may be
housed in a mating enclosure just like this one?!
Freq-Mite "Audio Dial"
This audio readout frequency counter serves as an inexpensive way to
provide a precise frequency readout for the SW30+. Connect
your rig's IF or RF output to the FM's input, and the FM's output to
the audio chain to hear the rig's operating frequency sounded in
Morse code! Made
available through partnership with the generous
Four State QRP Group.
1.75"L x 1.25"W
1 KHz resolution
800 Hz tone at 13 or 26 wpm
Full kit info at 4SQRP
Order now from Four
State QRP Group <==
Download a PDF of
the Schematic, the Troubleshooting Schematic and the Board Layout
Documents & Reference
Sorry, this project is sold out.
Copyright 2016 Midnight Design
Solutions, LLC. All Rights Reserved.
Page last updated: June 30, 2016