[ ] SW2 FREQ pushbutton
Solder J1 and J2, the Key and Headphone jacks to the board. These are 1/8”
stereo connectors. Be certain that they are pressed flush to the board before
soldering, and re-solder while pressing down if necessary to assure they are as
close as possible too the board.
[ ] J1 – 1/8” Stereo Jack – Key
[ ] J2 – 1/8” Stereo Jack – Headphones
Adjacent to the KEY jack are three pads connecting to the jack tip and ring, and
to the transmitter keying line. This is to facilitate addition of an optional keyer
circuit. If one is not to be used, jumper the TIP pad to the adjacent key pad at
JP1 using a snipped-off component lead.
Install the J3, the BNC antenna jack. It will require some time to heat the
ground pins in order to solder them.
[ ] J3 – BNC
Cut two, three-inch lengths of 22 gauge insulated, stranded wire. Strip 1/4” of
insulation from both ends of each piece. Solder them on to the terminals of the
coaxial power connector. The shell of the connector is the negative terminal,
and the center pin is positive. Solder the other ends of the wires to the
corresponding '+' and '-' pads at the left edge of the board. Verify that the shell
of the connector is connected to the '-' pad, the ground plane of the board.
The mating connector for this is a standard 2.5mm/5.5mm coaxial power
connector, wired so that the center conductor is positive.
ENCLOSURE
Take the finished circuit board, and, using the 3/8” screws inserted through the
bottom of the board, install the 1.5" aluminum spacers on the top side. Invert
the board, so that it rests on the spacers. Rest the front panel against the front
edge of the circuit board. Be sure that the key and headphone jacks fit through
the holes on the front panel, and the edge of the front panel rests evenly against
the workbench surface. Assemble the four side panel pieces around the main
board, and use rubber bands to temporarily hold them in place, making sure that
the edges are perfectly flush. Be sure that the horizontal silver stripes on the
side panels rest against the edge of the circuit board, and that the vertical slots
are toward the rear of the unit. Using a soldering iron (30W to 40W may be
Содержание Cyclone 40
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