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K3 to THP 1.5KFx connector

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Jim Spears

K3 to THP 1.5KFx connector

I researched the 5 pin DIN connector that is on the back of the THP 1.5KFx amp’s Yaesu interface jack and have a part number. This will enable any K3 which has the pullup resistors for band data installed on the KIO3 through the ALC mod or factory cut in to output band data to the amp and have it follow band changes just like the K3 was a Yaesu transceiver.

The SwitchCraft part number is: 12GM5M (presumably series 12GM, 5 pin, male)

The Mouser part number is: 502-12GM5M

It is important to note that this is a male connector with 5 pins distributed around 240 degrees. The more common 5 pin DIN connectors have the 5 pins distributed around 180 degrees, these will NOT work.

Wiring is straightforward from the DB15 connector to the 5 pin DIN. 4 signals plus ground. And ALC as a separate cable for those so inclined.

www.zerobeat.net/mediawiki/index.php/K3_to_Tokyo_Hy-Power_HL_1.5KFX_amplifier

shows the wiring diagram; presumably a K3 with the pullup resistors installed internally does not need the external 5 volt source.

Jim

N1NK

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AD6XY

Re: K3 to THP 1.5KFx connector

Are you sure that is what it is? The plug on the back of my THP HL50 and HL1.2K amplifiers ares not 5 pin 240 dins. They look almost right, but are not.

Mike

Jim Spears wrote

I researched the 5 pin DIN connector that is on the back of the THP 1.5KFx
amp's Yaesu interface jack and have a part number. This will enable any K3
which has the pullup resistors for band data installed on the KIO3 through
the ALC mod or factory cut in to output band data to the amp and have it
follow band changes just like the K3 was a Yaesu transceiver.

The SwitchCraft part number is: 12GM5M (presumably
series 12GM, 5 pin, male)

The Mouser part number is: 502-12GM5M

It is important to note that this is a male connector with 5 pins
distributed around 240 degrees. The more common 5 pin DIN connectors have
the 5 pins distributed around 180 degrees, these will NOT work.

Wiring is straightforward from the DB15 connector to the 5 pin DIN. 4
signals plus ground. And ALC as a separate cable for those so inclined.

www.zerobeat.net/mediawiki/index.php/K3_to_Tokyo_Hy-Power_HL_1.5KFX_amplifie
r

shows the wiring diagram; presumably a K3 with the pullup resistors
installed internally does not need the external 5 volt source.

Jim

N1NK

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Eric Swartz - WA6HHQ

All new K3s include Neg. ALC and Band Data pull-ups

Administrator

In reply to this post by Jim Spears

ALL new K3s shipping now include the negative ALC mod and the pull-up resistors on the band data outputs. 73, Eric WA6HHQ
Jim Spears wrote:

I researched the 5 pin DIN connector that is on the back of the THP 1.5KFx amp’s Yaesu interface jack and have a part number. This will enable any K3 which has the pullup resistors for band data installed on the KIO3 through the ALC mod or factory cut in to output band data to the amp and have it follow band changes just like the K3 was a Yaesu transceiver.

Phil Salas

Re: K3 to THP 1.5KFx connector

In reply to this post by Jim Spears

The Yaesu band data connector on the back of the 1.5KFx is really a 6-pin
DIN connector. They only use 5 of the pins (the center pin is not connected
to anything). So you can use the expensive 5-pin 240-degree DIN, or you can
use the cheap 6-pin DIN (Mouser part number 71-0276 @ 66-cents).

Phil - AD5X

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