[600MRG] 20 watts out with a 1625, low plate voltage?

[Kenneth G. Gordon]

On 29 Jan 2018 at 1:59, Dwight Blevins via 600MRG wrote:

> I think my problem is with loading. It dramatically affects the plate current. I have 
> a big antenna loading coil, probably 200uh, just outside the shack window.

Ike:

If your rig is on a bread-board or is open otherwise, I would be willing to BET you that what 
is happening is RF from your loading coil is "getting back into" your rig.

I suggest that if you have not done so, you put that rig into an RF-tight box of some sort, or 
at least move it as far from your loading coil as you can get it.

As an example, when I use my DX-35 on 40 meters with a VF-1 VFO which is not 
completely RF-tight, the RF from the transmitter's output causes the VFO to chirp badly.

When I operate the exact same system on 80 meters, where the VFO is outputting on 160 
meters, the signal qualtiy is perfect.

And BTW, I am 75 and still learning!!! :-)

Hang in there. We'll get it working yet.

Ken W7EKB

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