How to Identify the Resistors

 Open Bag 1 and carefully lay out the resistors onto a clear workspace.

Note that R16 is a potentiometer and is in Bag 4. It will not be needed until later. As noted in Bag 1 contents R8 has been eliminated from this model of the receiver.

The colored bands on the resistors indicate the resistance in ohms using the universal color code. This table indicates how to convert the colors to their numerical equivalents:

Black = 0
Green = 5
Brown = 1
Blue = 6
Red = 2
Violet = 7
Orange = 3
Grey =8
Yellow = 4
White = 9

 gold: 5% tolerance

(All resistors in this kit have a gold band indicating 5% tolerance).To read a resistor code, first locate the gold band then starting at the opposite end identify the corresponding numerical value for each color until you reach the gold band. 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: 1,000 = kilo = k; 1,000,000 = mega = Meg)

To try out your resistor identifying skills we have created a test example to see how good you are!

 
  • Brown-1
  • Black-0
  • Red-2 (how many additional zeros)
  • Gold = tolerance

ANSWER: 1000 ohms or 1k +or- 5%

Use the resistor code to identify all of the resistors. One good way to keep them sorted is to tape one end to a piece of paper, upon which you have written the resistance and component number (R1, R2, etc.).You can find the component nummber and number of ohms resistance here in Bag 1. Another way to keep sorted components straight is to sort them into an egg carton. You can label each compartment with the name and value of the component. Once you have identified and labeled all of the resistors, you are ready to solder them to the PCB.

First identify the location on the PC board in which you intend to insert a resistor.Then to prepare a resistor for insertion into the board, bend the two leads so that they form a right angle to the resistor body. leaving sufficient space between the bent leads to allow insertion.

Place the leads of a resistor through the appropriate holes and press the resistor down against the component side of the PCB. Turn the board over, bend the leads out slightly to hold the resistor in place, and solder the leads to the circuit side.(see soldering hints)