[AMRadio] AM Transmitter Advice??


ronnie.hull ronnie.hull at glowbugs.com
Mon Jan 30 15:10:53 EST 2006



Larry
for years I used a pair of 813's in grounded grid and drove them with a
ranger. It produced great sounding audio. I still have that as my backup to my
globe king.

813's are great tubes. The only drawback for me is I like to operate on ten
meters and 813's are shakey at best, up there.

good luck on your project, Iknow you will enjoy it.

ronnie - W5SUM

---------- Original Message -----------
From: Larry Keith <kq4by at rocketmail.com>
To: Discussion of AM Radio <amradio at mailman.qth.net>
Sent: Mon, 30 Jan 2006 12:06:43 -0800 (PST)
Subject: [AMRadio] AM Transmitter Advice??

> Well, Let's see if we can change the subject.. 8-)
> 
> I am gathering ideas for a homebrew AM transmitter..
> 
> My friend, KR1S (Jim Kearman) is designing an AM
> transceiver, for me.  We plan for this to be a
> solid-state unit that will deliver about 100 watts
> out. It will be single band (75 meters) and I have
> been considering using that to feed a homebrew linear.
> I have the makings of a 2 x 813 amp thanks to my and
> Jim's hamfesting efforts.
> 
> So far, we have been reading and kicking around ideas.
>  It seems that with the derating of the amp to handle
> the continuous carrier, etc.. may be more trouble than
> it is worth.  
> 
> So, I would be interested in opinions as to the
> relative merits of using a linear vs high-level
> modulation.  And, pointers to existing circuits would
> be helpful..
> 
> Any ideas?
> 
> 73,
> 
> Larry
> KQBY
> 
> Larry Keith 
> 231 Shenandoah Trail 
> Warner Robins, GA 31088-6289 
> kq4by at rocketmail.com 
> 478-329-0030 (home)
> 
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------- End of Original Message -------




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