Topband: 160m monoband amp (was strange propagation)

Mike Waters mikewate at
Sat Jan 16 19:40:12 EST 2016

Hi Lou,

Of all the sources of unique help and info about 160 meters, IMO this
reflector is the best one.
I suppose you've found the searchable archives, which I've found invaluable
many times:

There are other sources, notably ON4UN's Low Band DXing, published by the
ARRL. Everyone with an interest in 160m should own a copy.

There are a number of other informative web sites out there, too. I have
some of them listed and linked to from (not all on one page,
sorry). And there's a page there about Beverage antennas there that you
might find useful.

Maybe you would let me pick your brain sometime about my swamped-grid
dual-833C legal limit amp. It works fine on 160 and 80, but it needs
neutralizing if it's going to be stable on 40 (and work at all on 20). I
have a plan to neutralize it using a tertiary winding on the input
transformer, but I foresee a lot of trial and error. But I don't have time
to work on that right now.

I wasn't even sure if two of those triodes in parallel would even work, so
I didn't spend a lot of time making it look pretty.

Stick around, Lou. Believe it or not, this is usually a friendly forum!

73, Mike

On Sat, Jan 16, 2016 at 9:31 AM, Louis Parascondola via Topband <
topband at> wrote:

> I came to the group to try to pick up pointers on improving my 160 meter
> experience.  In the short two weeks I have been here I have so much
> information to digest.  Especially with receiving antennas,

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