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This is one of the many Tuna Tin Two
40 meter transmitters built by the group. This one belongs to
Jim WA2NIJ. It has the keying modification and was built Manhattan
style and the cabinet is a Altoids candy tin. We are progressing
on to Bigger and Better things but will eventually end up with
an operating VFO controlled transceiver. This transmitter puts
out 400 Milliwatts at the present time. A pair of QRP "boots"
is also in the works. |
| Here is one of the Regenerative Receivers
that was built by Henry. He even went so far as to build his
own string dial drive to improve the fine tuning aspects of his
tuning capacitors. This receiver tunes from about 3.5 Mhz to
7.3 Mhz. |
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This is our next project. It is a 7
Mhz VFO for use as the main tuning oscillator for a 40 meter
direct conversion receiver. The Oscillator coil is made from
a 5/16" soda straw that just happened to accompany a real
good chocolate milk shake from the local Sonic Drive-in. The
tuning element is a 6/32" brass flat head screw that is
1 and a 1/4" long. |
| This is the beginings of a complete
40 meter cw transceiver. It uses the VFO module above, an RF
amplifier, a Double ballanced mixer, and Audio stages, including
a varriable audio filter. It is built on a sheet of PC Board
from Radio Shack with another piece cut in half for the front
and back panels. The Tuna Tin Two transmitter and a 5 watt Amplifier
will mount on the bottom of the board. This is an ongoing project
of the builders group in our quest for the ultimate simple transceiver. |
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