hello to all: SUCCESS!! I took a small file and carefully filed the enamel off the wire near the hot end of the IPA tank coil/ PA grid coil, then I attached a small piece of tinned bus wire to the end threaded connector post. I then shorted out the first 9 turns of that coil with this small jumper. Of course retuning to resonance was necessary, and to be honest, it didn't change the variable capacitor a whole lot, nor did it increase the 810s grid drive more than 2 MA, BUT I now have achieved 73% PA efficiency, which according to the Gates factory manual is exactly what I should get, and what I was getting on 640 kc BEFORE I converted the transmitter to 1.885 MC. So now just a few more 'clean-up" items, and you'll hear me on 160 meters with full AM! Thanks to all who made suggestions!
73, Jerry K9AF
