VLF-3 Assembly Instructions
4
ASSEMBLY SEQUENCE
1. Solder components to PCB.
2. Assemble jacks subassembly, connect wires to antenna terminal.
3. Connect wires to PCB.
4. Final assembly of receiver.
5. Test receiver.
(Check off boxes as each step is completed.)
1. Solder components to PCB.
(NOTE: The transistor (Q1) and the field effect transistor (J-FET with ferrite bead) have been
preinstalled.)
1a. Sort and install resistors.
Remove the resistors from Bag 1. Leave the
inductors for later installation.
The colored bands on the resistors indicate the resistance
using a color code. This table indicates how to convert each
color to its numerical equivalent.
0 black
1 brown
2 red
3 orange
4 yellow
5 green
6 blue
7 violet
8 gray
9 white
gold: 5% tolerance.
To read a resistor code, first locate the gold band and
read the colors in order from the other end. (All resistors in
this kit have a gold band indicating 5% tolerance.) The first
two bands indicate digits in the resistance, the third band
(called the multiplier) indicates the number of zeroes to be
added to the digits to obtain the resistance.
(NOTE: 1000 = kilo = k ; 1,000,000 = mega = Meg)
