[Elecraft] oscarvais at speedy.com.ar

[Oscar Vais]

Hola Don,

Thank you very much my friend, is a great help, I connect it directly and 
operate vy good, Fl2100Z RY 17 DC 300 mA.

73, CUL

LU1XS, Oscar


LU1XS, Oscar
----- Original Message ----- 
From: "Don Wilhelm" <w3fpr at embarqmail.com>
To: <oscarvais at speedy.com.ar>
Cc: <Elecraft at mailman.qth.net>
Sent: Saturday, March 27, 2010 9:40 PM
Subject: Re: [Elecraft] oscarvais at speedy.com.ar


> 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
>>
>
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