I'm not quite sure where you are going Mike.  I think we are feeling 
and understanding the same thing, however.  The maximum output, 
highest tone on the TW1 should occur with the plate tuning set to the 
dip in the plate tuning.  Assuming that the transceiver final is 
properly neutralized and that there are no failed or failing 
components in the final circuit.  Increasing the loading should raise 
the amount of current at the plate meter dip, and again and hopefully 
always result in the maximum pitch in the meter.  I'm wondering if 
with the several hundred watts PEP of the FT102 you should have an 
attenuator between it and the linear.  Then you could properly tune 
and load the exciter and not overdrive the linear amp.
I read the information at the end of the link you sent and I wound up 
confused!!  Not uncommon, however.
Are we thinking the4 same way?
Good luck.
pat, K9JAUAt 05:54 PM 4/7/2015, you wrote:
>Hi Howard and all:=20
>
>According to Tom W8ji, the guy who designed and was in charge of the =
>ameritron AL-811 and AL-80 series prior to MFJ,=20
>under loading an amplifier and over loading can damage 1 part of the =
>tube or the other.=20
>This makes no since to me as you can't graft parts of tubes together to =
>make a good 1. LOL=20
>I do get it a little that under loading can put unnecessary strain on =
>tube components.=20
>Theres a balance there that has to be met. Can't explain it but it makes =
>a little sense.=20
>What puzzles me though is the camps. 1 group says you can under load an =
>everything be fine while another says you can't. LOL=20
>On dipping my plate on my 102 using the TW-1, maybe its my meter, maybe =
>its me,=20
>when I reach the peak pitch for max power, I can still rotate my plate =
>control a little bit more before the pitch begins to decrease.=20
>Like going up 1 side of a bridge, crossing the top and going down the =
>other side. While I'm crossing the top, there's no increase in power but =
>the current is still going up.=20
>I didn't know this of course until I got my XYL to look over my shoulder =
>this past weekend when tuning up my 102.=20
>My amp on the other hand has a shorter bridge top, that's what I'll =
>refer to it as. Somewhere in the middle of both tops, there's a slight =
>ripple in the tone.=20
>Perhaps this is the dip? At any rate, I'm now using my 102 with the load =
>below 3 instead of 6 and my plate is between the 275/300 mark,=20
>spec say 300MA max and I'm getting 150W key down.=20
>With my load at 6 and a plate current of 350, I was getting an extra =
>25/30W.=20
>Not worth it as I would reduce an run an amp.=20
>That to was a problem as I didn't have things properly loaded up for the =
>power I was driving the amp with.=20
>Not to mention the 102's SSB drive is controlled by the mic-gain.=20
>So I'd tune up in CW, switch to SSB and of course everything went out =
>the window.=20
>
>73:=20
>Mike DE VO1AX=20