K3 problems keying Alpha 87A

[cdeweyjr]

Yesterday I connected my new factory built K3 to my Alpha 87A and the amplifier keeps going into fault on the first key closure.  Power was only set at about 30 watts.  Is there a power spike causing this or some other problem I am not aware of?  I am brand new to this list and am not aware of previous discussion relating to this issue.  Thanks, Charlie, W0CD

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[Dick Green WC1M]

Charlie,

 

I'm using a K3 to drive my 87A, with no problems. What fault are you getting from the 87A? Does it occur on all bands, or just some or one? How do you have the K3 cabled to the 87A? I assume you're not using the keying loop, which is complicated to setup on the K3 and doesn't work properly on the 87A anyway.

 

73, Dick WC1M

 

From: cdeweyjr [mailto:[hidden email]]
Sent: Friday, October 17, 2008 9:15 AM
To: [hidden email]
Subject: [Elecraft] K3 problems keying Alpha 87A

 

Yesterday I connected my new factory built K3 to my Alpha 87A and the amplifier keeps going into fault on the first key closure.  Power was only set at about 30 watts.  Is there a power spike causing this or some other problem I am not aware of?  I am brand new to this list and am not aware of previous discussion relating to this issue.  Thanks, Charlie, W0CD

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