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possible, we install in an order that fits our "Learn-As-You Build" Kit building
philosophy. This entails describing the circuit that you are building, instead of
just blindly installing components. We hope that this will not only make
assembly of our kits easier, but help you to understand the circuit.
For each part, our word "Install" always means these steps:
1. Pick the correct part value to start with.
2. Insert the part, oriented correctly, into its holes in the PC board.
3. If helpful, gently BEND the part's wire leads or tabs to hold it into place,
with the body of the part snugly against the top side ("component side")
of the PC-board. The top side is the side that does not contain metal
traces, but does have an outline of each part printed on it.
4. Insert it into the correct PC board location.
5. Orient it correctly, follow the PC board drawing and the written directions
for all parts - especially when there's a right way and a wrong way to
solder it in. (Diode bands, electrolytic capacitor polarity, transistor
shapes, dotted or notched ends of IC's, and so forth.).
6. Solder all connections unless directed otherwise. Use enough heat and
solder flow for clean, shiny, completed connections.
7. Trim or nip all excess wires extending beyond each solder connection,
taking care that wire trimmings do not become lodged in PC-board
solder connections.
Now, let's get building!
Since you may appreciate some “warm-up” soldering practice as well as a
chance to put some “landmarks” on the PC board, we’ll first install some
“hardware” components. This will also help us to get acquainted with the up -
down, left - right orientation of the circuit board. Remember that the
components will be mounted on the “component” (printed) side of the circuit
board and then soldered on the “solder” (foil) side of the circuit board.
1. Install DPDT switch S2. Position it so that the plunger of the switch
extends over the edge of the PC board. Be sure to push the switch flat
to the circuit board. Solder all six connections.
2. Install RCA phono jacks J1 and J2. These connectors will “snap” into
place before soldering. Don’t be afraid to completely solder all three
ground connections as these will also limit the “stress” on the input and
antenna connections.
3. Install the 2.1 mm power connector in the J3 position.
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