KOHJINSHA HOME KL-1 for HF (JAPAN) KL-1 for HF (English) KL-1 for 6m ハマーズプラス
The KL-1 consists of a sophisticated and sturdy Main Unit and a Desk Top
Controller with five meters(HV,IP,IG,FWD,and REF) and LCD display shows BAND and ANTENNA CHANNEL so you can monitor the amplifiers working condition at all times.
You can be free from heat and noise if you install the Main Unit in another area or room with the control cable.
The length of the standard Remote Control Cable is 7meters(23').
※See specitications.
Preset tuning makes it easy to QSY quickly from one band to another.
You can preset up to 14 frequencies in ham bands .
After you set channels, QSY is so easy and quick.
You can move up and down between adjacent bands in less than a second.
Maximum waiting time to move from 160m to 10m is 30 seconds.
KL-1 should help your operation without stress.
Kl-1 YouTube
RS232C SteppIR interface Antenna Switch
You can connect KL-1 with your transceiver via a serial interface.
Verified compatible radios.
[YAESU] FTDX-9000,FTDX-5000,FT-2000, etc.
[ICOM] IC-7800,IC-7700,IC-760, etc.
[KENWOOD] TS-950,TS-2000,TS-590, etc.
[JRC] JST-145/245
KL-1 has a data output connector to send your transceiver frequency data directly to the SteppIR.
I prepared the antenna change machine of 6CH for the main part of linear amplifier as the option.

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USB interface
The USB port on the Desk Top Controller provides computer interfacing.
Preset Tuning RF unit (VVC,VL,and VR)
Large-sized variable tank coil and servomotor drive  
The tank circuit in RF unit and tube socket.
Power Supply
Double core heavy duty transformer is employed
so that 100% duty cycle operation with full legal
limit power is possible. You don't have to worry
while operating digital modes or long running
Custom made Electrolytic capacitor and ON/OFF delay circuit to protect the 3CX3000A7 increase the robustness of KL-1.
A power supply control part and high voltage rectifier board.

Directional Through-line PEP Wattmeter Control board in the RF unit
5KW Directional Through-line Wattmeter is equipped. You can measure and monitor the PEP output power.
2 power meters, FWD and REF provide a comfortable and reassuring operation.
PEP circuit board

PEP circuit boord

Input tuning matrix circuit and transmit/receive control circuit

KL-1 Product Specifications
Power tube 3CX3000A7 Spurious emissions Less than -50dB

pressttabe channels
1.8〜2.0MHz , 3.5〜4.0MHz , 7.0〜7.3MHz
(10〜10.15MHz) , 14.0〜14.35MHz , 18.068〜18.168MHz
21.0〜21.45MHz , 24.89〜24.99MHz , 28.0〜29.7MHz
14 presettable channels.
2 channels for 3.5, 7, 14 ,21 and 28MHz band.
1 channel for 1.8, 10, 18 and 24MHz band.
input connector 50Ω Unbalanced, BNC
Output connector 50ΩUnbalanced, SO239
Operating temp. 0℃〜+40℃ (32°F 〜 104°F)
Control cable 7m(23') *optional 10m(32'), 20m(65')
Mode CW, SSB, Digital Dimension
(Main Unit)


478mmW X 800mm H X 564mmD without caster hight.
(18"W X31"H X22"D)
320mmW X107mmH X167.5mmD case size
(12"W X4"H X6"D)
Driving power 75W〜200W
AC input 200 , 220 , 230 , 240VAC
Approx. 40Amps at 230VAC
(Main Unit)

Contact us : info@kojinsha.jp