[AMPS] 6146 splatter help?

[Tom Rauch]

> Is there any way to improve the splatter on my TS830s (low s/n) with RCA
> 6146B's?

Load it heavy enough, and make sure the bias is set properly. 
Watch the audio gain.
 
> On voice peaks (p's, t's and ch's) there are burps like key click sup and
> down the band about -40-60 db from the intended energy. It is only barley
> noticeable up and down with a 10+ S9 signal in another rcvr (although I
> hear the same thing coming from my TS130 too).

The ALC is too slow on attack. Over-tuning (load control open a bit 
further than normal) helps, as does keeping just at the edge of ALC.

> It is clean from the 12BY7 on a spectrum analyzer (FM/AM 1100s).  It seems
> that maybe the alc just isn't fast enough whenever the grid starts pulling
> current. 

Bingo.

73, Tom W8JI
w8ji@contesting.com

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