K2/100 Amp Keying Limits?

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K2/100 Amp Keying Limits?

Elecraft mailing list
Can anyone tell me what the external amplifier keying limits are for a K2/100?  I'm trying to use an AL811H, which has 14.5V at 10ma on the relay jack.  Do I need an external interface?  I cannot find the answer in the K2/100 manual.  Thanks!

73, Eric WD6DBM


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Re: K2/100 Amp Keying Limits?

Mike Cizek W0VTT
Hello Eric,

It's in theKPA100 manual, at the back under Specifications:

DC relay coil pulled to ground
1A at 200 VDC  (do not use with AC-controlled relay)

P59 in my book, which I just noticed, comes right after p62.....

----
73,
Mike Cizek W0VTT

-----Original Message-----
From: [hidden email] <[hidden email]> On Behalf Of eric norris via Elecraft
Sent: Tuesday, 16 March, 2021 21:11
To: Elecraft Reflector <[hidden email]>
Subject: [Elecraft] K2/100 Amp Keying Limits?

Can anyone tell me what the external amplifier keying limits are for a K2/100?  I'm trying to use an AL811H, which has 14.5V at 10ma on the relay jack.  Do I need an external interface?  I cannot find the answer in the K2/100 manual.  Thanks!

73, Eric WD6DBM

 
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Re: K2/100 Amp Keying Limits?

John-2
In reply to this post by Elecraft mailing list
Sent you an email Eric.

John.

ve7day


On 16/03/2021 7:10 p.m., eric norris via Elecraft wrote:

> Can anyone tell me what the external amplifier keying limits are for a K2/100?  I'm trying to use an AL811H, which has 14.5V at 10ma on the relay jack.  Do I need an external interface?  I cannot find the answer in the K2/100 manual.  Thanks!
>
> 73, Eric WD6DBM
>
> 
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> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
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>
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> Please help support this email list: http://www.qsl.net/donate.html
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Re: K2/100 Amp Keying Limits?

Elecraft mailing list
In reply to this post by Mike Cizek W0VTT
 My OLD  Rev A 2002 K2/100 manual shows it on page 56.  It'll switch 1A, +200VDC via an IRF830 (or IRL620)  MOSFET to ground.  It's on the left middle of the second page of the schematic.

Lou W7HV



    On Tuesday, March 16, 2021, 9:23:15 PM MDT, Mike Cizek W0VTT <[hidden email]> wrote:  
 
 Hello Eric,

It's in theKPA100 manual, at the back under Specifications:

DC relay coil pulled to ground
1A at 200 VDC  (do not use with AC-controlled relay)

P59 in my book, which I just noticed, comes right after p62.....

----
73,
Mike Cizek W0VTT

-----Original Message-----
From: [hidden email] <[hidden email]> On Behalf Of eric norris via Elecraft
Sent: Tuesday, 16 March, 2021 21:11
To: Elecraft Reflector <[hidden email]>
Subject: [Elecraft] K2/100 Amp Keying Limits?

Can anyone tell me what the external amplifier keying limits are for a K2/100?  I'm trying to use an AL811H, which has 14.5V at 10ma on the relay jack.  Do I need an external interface?  I cannot find the answer in the K2/100 manual.  Thanks!

73, Eric WD6DBM

  
 
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