watch those plate voltages on those old boat anchors <hi>.  Those rigs 
probably run class a and their plate voltages are in the 1200 volt range. 
73- pat kk3f
----- Original Message ----- 
From: "Steve Dresser" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Sunday, February 08, 2009 10:01 PM
Subject: Re: Plate modulated AM (was Re: intro)


> 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.
>>
>