Re: 8877 Help pse

Jeff Wheeler W7JW
 

Mal, this one is a HB on 6m.  I had a weekend Flash-Bang event. I blew the HV fuse (small 10 ohm resistor in series in the HV line). Now after repair of that the grid draws abt 10 ma. without any drive.  With drive, slowly easing up to 50 watts I still get my 1500 watts out but the grid current is way high, near 100 ma.  Some have suggested a mechanical grid short?  Any ideas or advice?
 
73 Jeff W7JW
 

From: Mal
Sent: Monday, June 18, 2018 5:38 PM
Subject: Re: [Elecraft-K3] 8877 Help pse
 

I had my K3s hooked up to an Alpha 9500 (one 8877)

 

From: Elecraft-K3@groups.io [mailto:Elecraft-K3@groups.io] On Behalf Of Jeff Wheeler W7JW
Sent: Monday, June 18, 2018 1:52 PM
To: Elecraft
Subject: [Elecraft-K3] 8877 Help pse

 

Is there anyone out there that has 8877 amplifier experience that would be willing to answer some technical questions via email? Tnx for the consideration. The amplifier IS driving the 8877 just so I’m not off topic.........

 

Jeff W7JW

w7jw@...

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