[Heathkit] Suggestion for legal limit AM amp (was Heath Warrior as an AM amplifier)

[Carl]

>From decades of abusing 813's Id say the real Pd is around 225W.
Try a few 803's if you really want some power on the low bands at least, 
they laugh at 3000V.

Carl
KM1H


----- Original Message ----- 
From: "Paul Baldock" <paul at paulbaldock.com>
To: <W9RAN at oneradio.net>; <heathkit at mailman.qth.net>
Sent: Tuesday, January 17, 2012 3:19 PM
Subject: Re: [Heathkit] Suggestion for legal limit AM amp (was Heath Warrior 
as an AM amplifier)


>I use a DX-60B driving a pair of 813's. I get outstanding audio
> reports. The 813's are running at about 2500V and comfortably give
> 600-800W (depending on band) PEP, 150-200W carrier. I know this is
> way over the spec'd dissipation for 813's but I've yet to have one die.
>
> I have my DX60B set to around 10W standing carrier, 15W average
> power, and 60W PEP.
>
> The DX-60B would be a great driver for the Warrior.
>
> - Paul
>
> At 09:36 AM 1/17/2012, Robert Nickels wrote:
>>On 1/17/2012 11:04 AM, Carl wrote:
>> > The T Bolt is a bit weak in the PS for extended old buzzard 
>> > transmissions
>> > from what Ive heard on the air and read elsewhere.
>>Carl,
>>
>>Based on your amplifier experience, wonder what you think about driving
>>linears with controlled-carrier AM exciters?   I've not tried it myself
>>but hear guys on the air all the time running rigs like DX-60s,
>>FT-101-series, and even some riceboxes that seem to work quite well.
>>The lower resting carrier level would seem to be a way of getting some
>>good power out of the lower-rated linear amplifiers like the Warrior.
>>
>>All I know is that the audio quality can be very good, although it is
>>important to set the proper carrier and modulation levels.  Just
>>listening to these stations on AM nets, I can't tell the difference vs.
>>high-level modulated stations.   I'm guessing that a PEP wattmeter would
>>be the best way to set up the combination to  operate within legal limits.
>>
>>73, Bob W9RAN
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