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Preventing electrostatic discharge damage, Parts inventory – Elecraft KXB3080 User Manual

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Screwdrivers: A small #2 Phillips, a small flat-blade for slotted screws and a very small flat-

blade (about 0.1” or 2.5 mm wide) with an insulated handle to adjust the trimmer caps.

Needle-nose pliers.

Small-point diagonal cutters. Flush-cutting type is required (Xcelite MS54-5J or equivalent).

Hobby knife or similar tool to cut a PCB trace.

50-ohm dummy load capable of handling 5 watts, minimum.

Digital Multimeter (DMM) for voltage checks and confirming resistor values. A DMM with

capacitance measurement capability is desirable, but not required.

Magnifying glass or visor.

Preventing Electrostatic Discharge Damage

The KXB8030 main PCB is sensitive to electrostatic discharge (ESD) damage. Also, the individual PCBs
in your KX1 may be vulnerable when they are unplugged.

 Keep parts in their ESD-safe packaging until called for in the assembly instructions. Do not place

individual PCBs in Styrofoam™ or similar containers. If possible, place loose PCBs inside ESD-
safe bags when you are not working on them.

 Wear a conductive wrist strap with a series 1 megohm resistor. If you do not have a wrist strap,

touch a ground briefly before touching any sensitive parts to discharge your body. Do this
frequently while you are working. You can collect a destructive static charge on your body just
sitting at the work bench. DO NOT attach a ground directly to yourself as this poses a serious
shock hazard.

 Make sure your soldering iron is ESD-safe and has a grounded tip
 Use a grounded antistatic mat on your work bench.

Parts Inventory

The table below lists the leaded parts to be installed, the pc boards, toroid cores, wire and

miscellaneous hardware required. The KX1 Owner's manual has photographs of similar parts.

Ref. Description

Qty

Part

No.

C1, C4

Capacitor, 1-40 pF trimmer

2

E540002

C1 (see Note 1)

Capacitor, 0.1 µF (104), 0.1” lead spacing

1

E530020

C26

Capacitor, 56 pF, (56) disc ceramic

1

E530146

C1 (see Note 1)

Capacitor, 15 pF, (150) disc ceramic

1

E530140

C9

Capacitor, Electrolytic, 10 µF, 35V (10)

1

E530045

K1

Relay, DPDT (G6K-2P)

1

E640029

L6

RF choke, 6.8 µH (blu-gry-gld)

1

E690044

L1, L2, T1

Toroidal core, T37-2

3

E680006

MISC (See Note 2)

KXB3080 PCB with SMD devices pre-mounted.

i

Caution: ESD sensitive! See page 2.

1 E120000

MISC (see Note 2)

LPF1 PCB

1

E120001

MISC

Kynar® wire, white, #24 solid

1 ft.

E760032

MISC

Solid, insulated hookup wire, green, #24

6”

E760008