Quad 303 all versions illustrated upgrade guidelines V2.0
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The identification of the plus and minus of electrolyte capacitors.
In almost all cases, the - (minus) is indicated with a long stripe with symbols at the side of the
can in the color of the printed text.
Also if the capacitor has wires, the minus wire is the shortest one!
Capacitors with screw terminals will sometimes have the stripe indication or have indications
on
top
of the capacitor, if any doubts, contact us! Be aware: connecting capacitors wrongly
could cause serious damage or injuries!
With axial capacitors there is an extra arrow indicating the minus wire, or there is a printed
small ring around the body indicating the minus wire. Also the minus wire is direct connected
to the aluminum body. The plus wire is sticking through the black plastic cap.
Indication of the cathode of diodes and zener diodes
The cathode will be indicated by a white, silver or black line on the body of the diode.
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