Good morning Jim,
It's been a long time since your last message... My apologies for taking so long to answer you; lots of home distractions here...
Trying to obtain more power in 10 and 15 meters, I modified the Pre-Driver Version 1 according to the information in DL7MAJ paper ("Full output on 10m").
The result was good but not enough: 25 Watts on 10 and 95 Watts on 15 meters.?I ended up pulling the Pre-Driver Version 1 and installing a Version 2 one.
I'll keep on trying to find what's wrong with the Version 1 unit later on...
Best 73 de Raoul CE3RY