The Visionary Sound Company

Resistors & Diodes

Figure 2 - Resistors & Diode Placement

The resistor leads first need to be bent to fit the hole spacing in the circuit board.  This is easily accomplished using one of the IC Sockets as a form.  Lay the body of the resistor long-ways between the two rows of legs on the IC Socket.  You will see that the resistor body fits into the space quite conveniently.   Make sure that the resistor is centered between each end. Now bend the resistors leads down over the end of the IC Socket so that they form a right angle.  They should now be perfectly spaced to fit into the circuit board.

The Diode is much smaller and needs to be bent in a slightly different way.  Lay it long-ways between the two rows of legs of the IC Socket as you did with the resistor.  Now slide it hard up against one of the ends and just bend that one lead down over the end of the socket at right angles.  Remove the Diode and turn it round.  Now insert the bent leg through the tiny rectangular hole in the IC Socket and lay the rest of the Diode long-ways between the legs of the IC Socket.  Push the body of the Diode hard up against the opposite end of the IC Socket and bend the remaining leg.  This should now fit the Diode hole spacing in the circuit board.

It doesn't matter which way round the resistors are mounted as long as they are mounted in their correct holes.  You will see that the labels R1 through R6 are plated onto the board.  Consult the diagram above if you are still unsure. Match the correct color-coding (see table above) with the correct R number, insert their legs through the relevant holes and push them all the way down so that they cover up the plated R number label.

Do the same with the Diode but remember that the dark band on the Diode should be the end furthest from the plated label + (positive) mark on the circuit board.

Cover the component side of the circuit board with the non-slip matting, invert the board and put it down onto your work surface where you are going to solder it.  The matting keeps the components from slipping out when you turn the circuit board over as well as stopping the board from sliding round when soldering it.

Solder (Don't weld!) the resistor and Diode leads to the circuit board and trim off the excess leads.