[Kenwood] TS850 and SB200

[Rob]

It was always my understanding that the SB200 had 572s in cathode  
driven grounded grid service and the tuning method was just like the  
220:  Drive the amp moderately, tune for max. output and go.  Pretty  
simple; no peaking this or dipping that.  Am I mistaken?

73

Rob / K5UJ


On Nov 19, 2008, at 10:58 AM, Darrell Drake wrote:
>
>
> However, my main concern in my original post, was the CORRECT tuning  
> of the amp.
> You didn't say in your original post whether you had any experience  
> with tuning final tubes, be it for a tube radio or amplifier. I'm  
> talking about the dipping and loading of the amp's plate voltage and  
> grid current. Done incorrectly, i.e. too high a voltage/current,  
> you've got cooked tubes. The tubes can actually melt! You've got a  
> 2400 volt power supply in there!
>
> If you want, I can dig up my Heath manual and e-mail a copy of the  
> tuning procedure to you.
>
> Take Care and GL
>
> Darrell,
> VA3DG/VE3DDG
>
>
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