[Elecraft] oscarvais at speedy.com.ar

[Don Wilhelm]

Oscar,

I don't know the specifics of your particular amplifier - BUT -
The K3 KEYOUT  can handle up to 200 volts DC (positive only) at 5 Amperes.

You can easily measure the requirements of any amplifier with a DMM.  
First set it to read voltage and measure the open circuit voltage (to 
the amplifier ground) from your amplifier KeyIn (or PTT IN or whatever 
it is labeled).  If that voltage is positive and less than 200 volts, 
check one passes.
Then configure your DMM to read current.  Connect the positive probe to 
the center conductor of the amplifier KeyIn jack and touch the negative 
probe to ground (that should operate the relay in the amplifier).  If 
the current is less than 5 Amps and the voltage test succeeded, then the 
K3 can key that amplifier.

73,
Don W3FPR

oscarvais at speedy.com.ar wrote:
> I need to connect my amplifier fl2100z with K3, direct connect to key out  to RY the amp FL2100Z or I have to put a relay, please i need help and thank you very much.-
>
> LU1XS, Oscar
>   
>