Ramsey Electronics FX Series Manual page 122

TX31: L8, 2.2 uH molded inductor (2 red, 1 gold and 1 black stripe).
At this point, every single main PC board component has been installed
except for L10, R32 and L9, which apply power to the RF output transistors
(driver Q9, final Q8). DO NOT INSTALL these parts until instructed to do so
during the Transmitter Completion and Tuneup procedure.
Stage TX: FINAL PROGRESS CHECK:
1. Double check component selection for Steps TX.
2. Use bright light and magnifier to go over entire board to check for
missed connections or solder bridges. If you suspect a solder bridge,
simple review the X-ray illustrations to see whether the points in
question are indeed to be tied together.
3. Carefully check entire board for:
4. Loose bits of wire lodged among connections or components on
either side of board.
5. Excess wire lengths which may not have been nipped and are now
bent flat, probably against another connection.
BUILDING THE LOW PASS FILTER PC BOARD:
The assembly of the low pass filter PC board is quite different from the way in
which you have assembled the main FX transceiver board. Component parts
are mounted on the circuit trace/solder side of the board! The reason for this is
that the board mounts against the output connector - and it would be very
difficult to solder the connector
center pin after the board is mounted
to it. You'll see why as you finish
building your rig.
When installing parts, insert the
component on to the PC board from
the solder side, the leads will extend
out through the bare side of the
board with no traces. The part is
then soldered on the solder side and
the leads trimmed away flush on the other side. When soldering the disc caps,
be sure that their leads are properly soldered. Sometimes the body insulating
material will coat the lead preventing a good solder connection and you may
wish to slightly scrape away this coating on some parts.
TX35. Install R41, 1K (brown-black-red).
TX36. Install D25, 1N914/1N4148 diode, observe correct placement of the
cathode band.