AMP MAKER N5X, Руководство по монтажу

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Some capacitors have a polarity - a positive terminal and a negative terminal. In this amplifier kit,
the blue/black electrolytic capacitors are all polarised. Look closely at the printing and you will see that
one of the leads on each of these capacitors is marked by a minus sign (-). This is often contained within
an arrow printed on the side of the capacitor, where the direction shows the negative terminal.
Potentiometers
Variable resistors in the form of potentiometers (also known as pots) are supplied for the amplifier's main
controls. In all cases, the value and type is printed somewhere on the pot's body. Suppliers differ in how
they mark the value/type. For some, it is stamped on the back of the pot, and for others it's printed on
the front of the pot. On the second type, you can only see the value when you view the pot from the
shaft of the pot - you can just make out 'B1M' in the picture below.
The text will also indicate the pot type. You may see 'Lin' or 'Log'. If you don't see either of these, look
for the a code letter next to the pot's value: A1M means 1M log; B22k means 22k lin.
The pots have three lugs, and it's important to know which is which, so the diagram below shows
the numbering convention. I always refer to the pot's lugs with reference to the back of the pots and
with the lugs uppermost - as that's always the side you will look at when you are soldering.
Diodes and MOSFET
These are the kit's semiconductors, and they are all used in the power supply (not the signal path, which
is 100 percent valve). There are two types of diode, with the zener diode being much smaller and
reddish/pinkish in colour.