[BULK] - Re: [Amps] Centurion cooling improvement ideas for A M service

[Steve Katz]

25W or so is probably about right; but when tuning up, the amp should be
tuned up at full power, not at "carrier" power for an AM signal!  So, you
must be prepared to provide it with sufficient drive to run 1kW+ output for
tuning, and then reduce drive to set the carrier level -- without re-tuning
the amp.  -WB2WIK/6

> -----Original Message-----
> From:	Joe Isabella [SMTP:n3ji at yahoo.com]
> Sent:	Wednesday, August 25, 2004 11:07 AM
> To:	Amps
> Subject:	[BULK] - Re: [Amps] Centurion cooling improvement ideas for
> AM service
> 
> Having not run one myself in AM mode, I don't know the exact answer.
> However, I have talked to a couple guys running Johnson Rangers into them
> and I believe they have to reduce the drive.  A typical ranger does about
> 50-60W AM carrier, so I think it's somewhere around 20-30W.  Sound about
> right?
>  
> Joe
> 
> charlesmorris at direcway.com wrote:
> Any idea how much drive an SB220 would require to achieve 300W carrier
> out?
> thanks
> Charles
> WB3JOK
> 
> ----- Original Message -----
> From: Joe Isabella 
> Date: Wednesday, August 25, 2004 9:56 am
> Subject: Re: [Amps] Centurion cooling improvement ideas for AM service
> 
> > SB 220 would do 300W carrier AM (or about 1200W PEP) for a "normal" AM
> transmission.
> 
> 
> 
> 		
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