EA3GCY EGV-40, Инструкция по сборке

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EGV-40 CW QRP Transceiver Page 23
IMPORTANT : DO NOT INSTALL L5 now. You will install it later, when adjustments are made. (see the
“ADJUSTMENTS AND CHECKS” section).
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In order to make the process easier, L5 can be wound in two stages. Pass half of the wire through the
toroid and wind half toroid; then, turn the toroid and wind the other half. In case of doubt about the turn
count, you will be able to count them easily with a good light and a magnifying glass.
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P1, P2 and P3 potentiometers
Install the pots P1 (RX attenuator), P2 (volume) y P3 (fine tuning) as shown in the picture.
You may want to mount P2 and P3 in the front panel, out of the board. No problem, but use short wires.
P3, the RF attenuator, is thought to be placed in the back panel; if you want to wire it use RF-rated mini
coaxial cable.
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Q12 bridges ”B-C-E to “x-y-z”
The bridges “B-C-E to x-y-z” allows the use of different types of transistor for Q12. If need be we may
use substitutes with different leg configurations.
The EGV-40 kit uses as Q12 a 2SC2078 and
the following bridges SHOULD BE INSTALLED: “B-x”,
“C-y” and “E-z”. Cut small pieces of wire (or resistor leftovers) to prepare the connections “B” to “x”, “C”
to “y” and “E” to “z”