3
www.ampmaker.com
3
www.ampmaker.com
and check them off. If this is your first amplifier project take a little time to familiarise yourself each type
of component, its shape, size and connections (leads, solder lugs, etc).
Resistors
The Kit contents page lists the resistors first. Most resistors are too small to have printed values, and
instead the manufacturers use a standard set of colour coded bands to indicate the resistor's value. You
can decipher the code using the Resistor colour codes table below.
For resistors, r = ohms (
Ω
), k = kilohms (k
Ω
) and M = megohms (M
Ω
).
TIP:
Depending on the colour of the resistor's body, some colour bands may be tricky to read; dark
green, for example, may appear to be almost black. If in doubt, to avoid any mistakes use your digital
multimeter (DMM) to check the resistance. There's a tolerance in all components, and in the resistors,
values will be /- 5% of the specified value, such as 98.2 for the 100 Ohm resistor.
It's also very apparent that a few resistors are bigger than others. The resistor size is related to its
power rating: the smaller ones being rated for a maximum of 0.5W, the slightly larger ones for 1W, the
medium-sized ones for up to 3W and the largest for up to 5W. This will be very apparent when you lay
them out side by side. There's only one value which is present in two ratings - 100k, with the 3W version
being much bigger than the 0.5W version. Resistors do not have a polarity; so it does not matter which
way around they are connected in the circuit.
(Note that supplies of parts do vary over time, and a resistor shown in the build guide may be a
different colour to what's supplied in your kit, or it may be printed with a written value instead of colour
bands. If you're in any doubt, get in touch with Amp Maker.)
Summary of Contents for N5X
Page 9: ...9 www ampmaker com...
Page 13: ...13 www ampmaker com...
Page 33: ...33 www ampmaker com...
