Howard,

Yeah, you really want a reliable way to read the current, and listening to 
transformer hum just doesn't cut it.  A friend of mine owes me a Viking 
Ranger 2, and if we ever figure out a way to get it up here from 
Connecticut, I'll have it.  I listen to lots of AM on the 480, with the 
receiver in the wide position, and with High Cut set to 5000 and Low Cut set 
to 0.  I use an old 12-inch speaker that I've had for years, and it really 
does sound quite good.  Maybe not "high fi" in the strictest sense, but much 
better than the 480's internal speaker, and quite acceptable for AM.  I've 
transmitted on AM with the 480 and run about 200 watts out by driving an 
AL-811H with about 20 watts, but the 480's audio just doesn't cut it on AM, 
even with equalization.  Oh well, maybe some day I'll get that Ranger.

Steve

----- Original Message ----- 
From: "Howard Kaufman" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Sunday, February 08, 2009 15:31
Subject: Re: Plate modulated AM (was Re: intro)


> Some of the commercial stuff sounds quite good.
> I use a Johnson Valiant, that has been modified with an oscellator 
> circuit,
> so I can resonate it and match the output power appropriately.  It is a 
> lot
> better than the listening to the transformer hum method.  I usually run
> about 110 watts output and knock on wood, haven't had a problem in years
> with the old station.  I use a d-104, and use the ts480 through a high fi
> amp for receiving.
>