Ramsey Electronics FX-440 Manual page 118

transceiver. If the 1 OOK resistors provided in your kit have pre-shaped
and trimmed wire leads, simply press them into place and solder both
ends. If the 1
OOK
resistors are supplied in the more usual style of a taped
strip, all you need to do is work out your own mass-production procedure
to get the resistors in place as illustrated. There is no right, better or best
way other than the need for clean soldering practice.
[ I [ I
H11-21 (a). Analyze the task of soldering 13 1
OOK
resistors
(brown-black-yellow) required for R91-R101, 116, 117. Plan careful
soldering procedure and install the parts.
[ ] [ ] H22-40(a). Analyze the task of soldering nineteen 1
OOK
resistors
(brown-black-yellow)required for R71-R89. Once again plan careful
soldering procedure and install.
[ I [ ]
H41. Form one diode matrix "bridge" for the RECV row of holes.
Using the heavier gauge bare wire in your kit, shape, insert and
solder this wire bridge as illustrated below.
LENGTH - 2.8 In
I
ACTUAL SIZE WIRE BRIDGE
.75ln.
~===========t===
- 1 - .,rPC BOARD
Height above
board - .Sin LENGTH - 2.8 in
~
W
N
+
N
~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
RECV
o
O
o
@
O
@
o
@
o o
@ @ @
+RPTo---o--o--o-~~--o-..fi:~~-o---o--0--0--0--0
AUXo---0--0--0--o-~--o--<>--<<>---<>---o--<>--o--o--0
Form and install all 4 bridges
at
this time
~
you wish
[ ] [ ] H42a Select six (6) diodes from the master supply of 1 N914 or
1 N4148 switching diodes provided with this transceiver kit.
( ] [ ] H42b. Set the PC board across two small boxes, blocks, cups or ..
any objects which provide a couple inches of clearance between
the bottom (solder side) and your work surface.
[ ) [ I
H42c. Stand the CATHODE (dark band) ends of the six diodes
DOWN into these positions on the RECV row of the smaller
matrix:
Assm. 58
FX-440