Re: [Amps] Want to build first amp

[Bill Fuqua <wlfuqu00@uky.edu>]

When building my fist transmitters and amplifiers, I built them as single 
band units.  This allowed me to get something working quickly and debug 
problems before I added even more parts. And to learn from your experience 
early in the game. Also it is a quick and less expensive way to get 
something on the air. I always had a problem with drawn out projects and 
loosing momentum if they took too long before I began seeing results.  Some 
things are  you will have to do in any case. One is to build  or acquire a 
power supply. I seem to have lots of them just now.
Just make sure you leave enough room in the single band amplifier to add 
the band switching and other components later. Don't paint yourself  into a 
corner.
    Try for a 20 meter Amplifier first and then go from there.
73
Bill wa4lav


At 03:58 AM 1/20/2005 +0000, Tomm Aldridge wrote:
> Learned listmates,
>
> I want to embark on building my first HF tube amplifier.  I would like to 
> know what to start with, GG triode or Grid Driven Tetrode.  I am looking 
> for legal limit plus and will provide 230V for operation.  GS35b tubes 
> have caught my eye as have GU84b units but I am open to suggestions.  Oh, 
> and this will be a deskside unit with a 19" rack as its basis and it will 
> be expected to provide service from 160m to 6m. Lots of great material out 
> there on both flavors.  I am looking for reliable operation, ruggedness 
> (tolerance of my errors), 50 to 100W drive from my Kenwood to full output, 
> simplicity and cost effectiveness.
>
> I am an experienced EE with PSU and systems experience but have not ever 
> tackled a tube amp below 10GHz (grin).
>
> Waiting for all teh great guidance.
>
> KD7QAE
>
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