Ten-Tec SSB-CW-AM, Инструкция по эксплуатации

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In discussing the Display Board, we referred to the "front" and
"back" sides of the board. In the Main Board assembly steps,
we will refer to the silkscreened side as the TOP and the solder
side as the BOTTOM. However, when the display board is
plugged in and facing you correctly, the component or top side
of the main board actually faces downward!
VERY IMPORTANT : Take the time to study the board itself and
all board drawings in this manual . Some silkscreened component
outlines or identifications may be obscured by the space required
for the plated-through pads. Therefore, you must consult the
circuit board outline drawings printed in this manual.
Conventions used
in this Instruction Manual
Our primary goal is accuracy of parts selection and correct
installation, NOT the fastest possible "stuffing" of the board.
That's why a numbered instruction is provided for each part, and
why we follow a specific pattern for listing instruction sequences
for similar groups of parts such as resistors or disc capacitors.
Ɣ
Groups of similar parts:
Our assembly lists of similar parts begin with the lowest value of
resistance or capacitance, etc., and go up in value, grouping
identical values together, starting with the lowest designator
number. For example:
Install the following 1/4-watt resistors:
2-1. Resistor R1, 4.7 ohm (yellow-violet-gold).
2-2. Resistor R10, 470 ohm (yellow-violet-brown).
2-3. Resistor R4, 10K , (brown-black-orange).
2-5. Resistor R9, also 10K .
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2-8. Resistor R5, 47K (yellow-violet-orange).
2-9. Resistor R6, also 47K .
2-10. Resistor R2, 10 megohm (brown-black-blue).
1254
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Assembly - 11
Model 1254
Main Circuit Board Assembly
NEVER GUESS about the identification or orientation of a
part if it is not absolutely clear on the board silkscreen.