power to remote KPA100/KAT100 question

[Tim Logan]

Hi folks -
I am in the process of building a remote KPA100/KAT100 in an EC2
enclosure. The KAt100 is done and I am starting the amp.

I have read Lyle and Bob's excellent descriptions of the connections
between the K2 and the remote unit but in either case I believe (maybe I
missed it) the KPA100 has a separate power cord from the K2. I would
like to have one power cord with a  "Y" connection to the KPA100 - and
have the KAT100 get it's power internally in the EC2 from the KPA/100. I
would like to be able to have all three modules (the K2, the KPA100, and
KAT100) turn on via the front on/off switch on the K2.

Is there any reason I should NOT do it this way or a preferred "power
on" sequence? Thanks folks.

73/Tim NZ7C

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[Sverre Holm]

-----Original Message-----
I am in the process of building a remote KPA100/KAT100 in an EC2 enclosure.
The KAt100 is done and I am starting the amp.

I would like to have one power cord with a  "Y" connection to the KPA100 -
and have the KAT100 get it's power internally in the EC2 from the KPA/100. I
would like to be able to have all three modules (the K2, the KPA100, and
KAT100) turn on via the front on/off switch on the K2.

Is there any reason I should NOT do it this way or a preferred "power on"
sequence? Thanks folks.
---------

I have also built an external KPA100/KAT100. I power them both from an
Alinco 12 V power supply (DM-330MV). The power-up sequence is: first the
KPA100 then the K2. This way the K2 CPU senses that the KPA100 is present
and adapts to that.

There is no way you can route the KPA100 power through the K2 switch and I
would not want to try to modify the K2 to do that. Up to 20 Amps seems to me
to be way too much for that switch.


73

Sverre
LA3ZA
http://www.qsl.net/la3za/
 




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[David-470]

MY kpa 100 and kat150 don't have a power switch and they are in the
separate ec2 case when I turn the k2 on everything comes on. Or am I
missing something


 
 
see ya
 
73's
N1IB
David Schornak
K2 03027
www.n1ib.com
www.n1ib.com/blog/
www.n1ib.com/leather/
 
arf
don't forget me
Mis Ginger



-----Original Message-----
From: [hidden email]
[mailto:[hidden email]] On Behalf Of Sverre Holm
Sent: Monday, May 09, 2005 3:05 PM
To: 'Tim Logan'; 'Elec-Reflector'
Subject: RE: [Elecraft] power to remote KPA100/KAT100 question


-----Original Message-----
I am in the process of building a remote KPA100/KAT100 in an EC2
enclosure. The KAt100 is done and I am starting the amp.

I would like to have one power cord with a  "Y" connection to the KPA100
- and have the KAT100 get it's power internally in the EC2 from the
KPA/100. I would like to be able to have all three modules (the K2, the
KPA100, and
KAT100) turn on via the front on/off switch on the K2.

Is there any reason I should NOT do it this way or a preferred "power
on" sequence? Thanks folks.
---------

I have also built an external KPA100/KAT100. I power them both from an
Alinco 12 V power supply (DM-330MV). The power-up sequence is: first the
KPA100 then the K2. This way the K2 CPU senses that the KPA100 is
present and adapts to that.

There is no way you can route the KPA100 power through the K2 switch and
I would not want to try to modify the K2 to do that. Up to 20 Amps seems
to me to be way too much for that switch.


73

Sverre
LA3ZA
http://www.qsl.net/la3za/
 




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[Sverre Holm]

-----Original Message-----

MY kpa 100 and kat150 don't have a power switch and they are in the separate
ec2 case when I turn the k2 on everything comes on. Or am I missing
something
-----------------

Parts of the circuitry is on as soon as power is applied to them via the
Anderson connectors. Try turning on the K2 with the Anderson connector into
the EC2 and without it. You should see NO PA PS in the last case in the K2
display.


73

Sverre
LA3ZA
http://www.qsl.net/la3za/
 




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