Ramsey Electronics HR40 Manual de Instruções descarregar pdf (Página 15)

FHT-1 • 15

 65. Install L13, another slug tuned shielded coil (marked 007007). This

coil is also part of the first tripler section.

 66. Install C21, 4.7 or 5 pf disc capacitor (marked 4.7 or 5 or 4.7K or

5K).

 67. Install TP1. Select a 1K resistor, R9 (brown-black-red). Trim back

one lead wire to a length of a quarter inch. Bend this wire into a small

loop as shown. This loop will act as a convenient point to connect a test

probe for tuning up your transmitter. Insert the resistor into the PC board

and hold it carefully while you solder it to the board.

 68. Install R6, 2 ohm resistor (red-black-gold).

 69. Install C29, 100 pf disc capacitor (marked 100 or 101).

 70. Install C22, 47 pf disc capacitor (marked 47 or 47K).

 71. Install R4, 1 K ohm (brown-black-red).

 72. Locate Q4, NE021, the tiny black

transistor disc stuck to a piece of

paper (marked 021). Carefully remove

it from its protective paper and bend

all three leads down 90 degrees from

its body. Notice how one lead is

longer than the others, that lead (the

collector) must be installed exactly as

shown in the drawing - pointing

towards L5. Set Q4 into the PC board

making sure that its body is snugly

against the PC board and positioned correctly. You should be able to

read the printed markings on the part, if you cannot, then you have the

transistor flipped over. Solder and trim all three leads.

 73. Install L5, pink color

slug tuned inductor.

Make sure you place the

coil body right up against

the PC board snugly.

 74. Install aluminum coil

shield can cover over L5.

 75. Install R1, 1K ohm

(brown-black-red).

 76. Install R28, 100 ohm (brown-black-brown).

 77. Install C3, .01 uF (marked .01 or 103 or 10nF).

 78 Install C16, 100 pf disc capacitor (marked 100 or 101).

6 hole ferrite core

enameled wire

tin ends

3 turns through center

enameled wire

tin ends

1 2 ... 10 11 12 13 14 15 16 17 18 19 20 ... 33 34

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Ramsey Electronics HR40 Manual de Instruções Página 15

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