Our Rework Eliminator™ brand aftermarket K2 accessories are organized into four distinct product lines:
We also offer
Combo Packages
for builders who are starting out with just a base/stock K2.
K2 Internal Mic Adaptor (IMA)
The Internal Mic Adaptor is
an assembly
composed of two
tiny
multi-layer circuit boards
that fits behind the K2’s front panel.
It is easily accessible after removing just the left side panel of the K2 enclosure,
enabling you to quickly reconfigure your K2 for
most *
8-pin Foster mic plug standard
pin-outs .
Adaptor Kit
– Two PCBs, all requried parts, seven jumpers, self-adhesive decal, and instruction sheet.
2 Extra Jumpers
– Two 0.100" pitch jumpers.
* The IMA should support all Elecraft, Icom, Kenwood, and Yaesu mics
and at least some Alinco, Heil, and Ten-Tec mics that were manufactured with an 8-pin Foster mic plug.
However, most newer Alinco mics will still require an external adaptor.
In total, more than 55 microphones are supported.
Adaptor Kit
Description
Two tiny four-layer PCBs, all requried parts, seven jumpers, a self-adhesive decal,
and Quick Start Instruction Sheet (QSIS).
Features include: 30µ" gold plated contacts, jumper selectable external biasing,
dual PCB ground planes, and RoHS compliance.
Contents
PCB
consisting of 2 sub-boards:
Mic Extender
Mic Patch Panel
(3) 1/8 W 5% Resistors:
5.6 kΩ;
3.6 kΩ;
820 Ω.
(7) .100" jumpers with tapered handles (30µ" gold plated contacts)
(3) .100" Connectors:
2×8 surface mount pass-through socket (30µ" gold plated contacts)
3×7 through-hole terminal strip (30µ" gold plated contacts)
2×6 right angle through-hole bottom shroud strip
3.5" × 2.125"
self-adhesive decal
Full-color printed
Quick Start Instruction Sheet (QSIS)
2 Extra Jumpers
Description
These 0.100" pitch jumpers have 30 µ" gold plated contacts and tapered 0.310" long handles.
The IMA kit includes seven of them, which should be sufficient for configuring any microphone.
Although in theory as many as eight jumpers can be installed on the jumper block at the same time,
in practice you would normally only need additional jumpers if you were to misplace or damage one or
more of those originally supplied with the Adaptor kit.
Contents
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Headers PCB
Description
Just the
un-module
header printed circuit board.
No other parts are included.
Assembly requires connectors, resistors, and caps.
Installation requires UN-KNB2 mounting hardware.
This approach may be preferred by international customers,
in order to minimize shipping charges and Value Added Tax (VAT).
Contents
Deluxe User’s Guide
Description
The
Deluxe User’s Guide
has lots more information that the Quick Start Instruction Sheet (QSIS).
It is professionally laser printed on premium quality paper and staple bound.
The print is in black and white
with the exception of the centerfold
un-module
diagram
which is printed in color.
The print quality of the diagram is far superior to what can be produced
using an InkJet printer.
This is not the guide containing our rework-free
“Option Ready”
alternate K2 assembly instructions.
Our rework-free K2 assembly instructions are in the “Companion Guide”,
which is only available in “softcopy”
as a downloadable Portable Document Format (PDF) file.
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Option Ready – Duplicate K2 PCB Parts Kits
These kits provide duplicates of 46 option supplied
K2 Front Panel, Control, and RF circuit board mounted parts that are not included with the stock K2.
Incorporating
these parts
while building your K2 will greatly simplify the task of upgrading it later.
None of these parts kits are required when purchasing a fully loaded QRP or QRO K2
since they are included with the
options .
The components supplied with our parts kits have the same (or in some cases better) specs
as those provided with the actual
options .
All Option Supplied Parts
Description
All of the option supplied K2 PCB parts –
including electrical components, connectors, hardware, and wire –
required to fully populate the three main circuit boards of a stock K2.
Incorporating
these parts
during initial assembly makes it possible to build a rework-free
“Option Ready” K2.
The installation of these parts in an already built K2
requires significant disassembly of the enclosure and some PCB rework.
It may also be necessary to replace the PA transistor
thermal pads
as a result of the disassembly that’s required (as described below).
Contents
One each of the following Rework Eliminator™ Duplicate K2 PCB Parts kits:
Aux RF Plug
Description
RF-P6 (Aux RF) which is provided with both the KAT2 (Internal 25W Auto-Tuner)
and the KPA100 (Internal 100W Amp) options.
Purpose
Connector P6 must be installed on the K2’s RF board
prior to installing either the KAT2 or the KPA100 into a stock K2.
The installation of RF-P6 (in an already built stock K2)
requires significant disassembly of the enclosure
and may also require replacing the PA transistor thermal pads.
Contents
Plug, 2-Pin 0.156" (~4 mm) spacing
Aux 12V Plug
Description
RF-P3 (Aux 12V) which is provided with both the KBT2 (internal 2.9 Ah gel-cel battery)
and KPA100 (Internal 100W amp) options.
Purpose
Connector P3 must be installed on the K2’s RF board prior
to installing either the KBT2 or the KPA100 into a stock K2.
Contents
Plug, 2-Pin 0.156" (~4 mm) spacing
Aux Filter Jacks
Description
CTRL board jacks J1 (Audio Filter In) and J2 (Audio Filter Out).
They are provided with both the KAF2 (Passive Audio Filter)
and the KDSP2 (Advanced Digital Signal Processor) options.
Purpose
These two jacks must be installed on the K2’s Control board
prior to installing either the KAF2 or the KDSP2 option into a stock K2.
The installation of these jacks (in an already built stock K2)
entails removing the Control board from the K2, and some PCB rework to first remove jumper wires
CTRL-R18 and R19 from the bottom of the PCB.
Contents
3-Pin .100" SIP Female Jack
5-Pin .100" SIP Female Jack
KNB2 Parts
Description
K2 RF board parts provided with the KNB2 (Noise Blanker) option.
Purpose
These parts must be installed on the K2’s RF board prior to installing the KNB2 into a stock K2.
Some PCB rework is required.
Contents
Resistor, 2.7 kΩ
8-Pin .100" SIP Female Jack
Threaded standoff, 3/8" × 3/16"
4-40 × ¼" Phillips machine screw, Zinc
(3) #4 split lock washers
KSB2 Parts
Description
K2 RF board and Front Panel board parts provided with the KSB2 (Single Sideband) option.
Purpose
These parts must be installed on the K2’s circuit boards
prior to installing the KSB2 into a stock K2.
The installation of the Front Panel parts (in an already built stock K2)
requires significant disassembly of the enclosure.
Contents
Resistor, 68.1 kΩ, 1%, ¼ W
Resistor, 10 kΩ, 5%, ¼ W
(5) Capacitors, .01 uF, 0.2" (5 mm)
(2) 3-Pin .100" SIP Female Jacks
12-Pin .100" SIP Female Jack
Connector, 2 × 8 pin male, .100"
Resistor network, 10 kΩ, 4 R, 8 pins
Transistor, PNP, 2N3906
Threaded standoff, 3/8" × 3/16"
4-40 × ¼" Phillips machine screw, Zinc
(3) #4 split lock washers
K60XV Parts
Description
K2 RF board parts provided with the K60XV (60 Meters & Low Level Transverter I/O) option.
Purpose
These parts must be installed on the K2’s RF board
prior to installing the K60XV into a stock K2.
The installation of these parts (in an already built stock K2)
requires significant disassembly
of the enclosure, and may also require replacing the PA transistor thermal pads.
Some PCB rework is also required.
Contents
Capacitor, 120 pF
(2) Diodes, MV209
8-Pin .100" SIP Female Jack
3-Pin .100" SIP Female Jack
Nylon standoff, 9/16" × 3/16"
6" hookup wire, #24, green, solid
Coax, RG174, 2 ft.
3" Heat-shrink tubing, 3/16"
K160RX Parts
Description
K2 RF board parts provided with the K160RX (160 Meters & Receive Antenna) option.
Purpose
These parts must be installed on the K2’s RF board
prior to installing the K160RX into a stock K2.
The installation of these parts (in an already built stock K2)
requires significant disassembly of the enclosure,
and may also require replacing the PA transistor thermal pads.
Contents
Capacitor, 470 pF NPO (“471”)
(2) Capacitors, 1200 pF NPO (“122”)
16-Pin .100" SIP Female Jack
Threaded standoff 5/8" × 3/16"
4-40 × ¼" Phillips machine screw, Zinc
(2) #4 split lock washers
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Spare/Replacement K2 PCB Parts
Neither of these kits are required to build a “current model” K2 (one whose S/N is greater than 4060).
Spare thermal pads may prove handy while upgrading your existing stock K2.
The RF board caps are only needed when building or upgrading older (pre-S/N 4060) K2s
to make them “Option Ready” for the K160RX option.
Spare PA Thermal Pads
Description
Not required for a new K2 build.
Also not required if you are adding the K60XV option
since it already includes a pair of replacement thermal pads.
However, a spare pair of thermal pads is useful
to have on hand if you are upgrading an already built K2
with any of the following Rework Eliminator™
Duplicate K2 PCB Upgrade parts kits:
KAT2/KPA100 (RF) Plug, K60XV Parts, or K160RX Parts.
Purpose
If you intend to upgrade an already built bare/stock K2 to make it
“Option Ready” for all
options ,
Contents
One pair (i.e. two) thermal pads.
Replacement RF Caps
Description
These two caps are included with the K160RX and with all current K2s.
However, they are not included with our K160RX Parts kit.
The reason they are included with the K160RX is to replace two original caps in older K2s.
If your K2’s S/N is below #3060 and you are ordering our K160RX Parts kit
to either build or upgrade your K2 so it’s “Option Ready”
for the K160RX option, then you will also require these two replacement caps.
Contents
RF-C68, 10 pF NPO disc.
RF-C153, 68 pF NPO disc.
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K2 PCB Parts + Headers = Combo Packages
Even if you don’t purchase one of our combo package offerings,
you still might find the following descriptions helpful
in determining what you need to build your K2 so that it’s
“Option Ready” .
Our Standard Combo Package is exactly what you need
if you are starting out with just a bare (S/N 4060 or higher) K2, i.e. one without any
options .
If the slight additional cost isn’t an issue for you, you might prefer one of our combo packages
even if you are starting out with a fully loaded K2.
This is because having duplicates for all of the option supplied K2 parts
eliminates the need to sort through each of the
options
to find them while populating your K2’s circuit boards.
If you are getting some
options
with your K2, then in addition to our option bypass headers kit, all you really need are our duplicate K2 PCB
parts kits
for just the
options
that you have not yet purchased.
The
What Else Do I Need?
page explains how to determine which of our
parts kits
you need, based on the
options
you already have.
Please feel free to
contact us
if you still have questions about what you need.
