15
b. Electrolytic Capacitors: We will use 3 different electrolytic caps on the main board. There
is one 220uF cap (C6), two 100uF caps (C19, C20), and two non-polarized (bipolar) 1uF
caps (C4A, C5). You can read their values on their casings. Caps C6, C19 and C20 ARE
POLARIZED: there is a right way and a wrong way to install them. If you get it wrong, your
pedal will not work and the capacitor might burst. The white stripe on the case indicates
the side of the cap with the shorter, negative lead. The longer lead is positive. The longer,
positive lead goes into the hole with a square pad; the shorter, negative, white-stripe lead
goes into the hole with the round pad (7).
STRIPE = NEGATIVE = SHORTER LEAD = ROUND PAD
NO STRIPE = POSITIVE = LONGER LEAD = SQUARE PAD
Make sure you orient these caps properly (7, 8)! For reference, “Figure 5: Main Board
Component Values and Locations” on page 13 has little red plus signs (+) on the positive
pads. C4A and C5 are NOT polarized, which is why there is no white stripe on their
casing. You can install these in either direction. Bend the leads out on the back as you install
each one (10). Solder (11) and clip each lead (12).
7
8
9
10
11
12
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