Jerry,
I started with the latest kit.?
The output transformer was done as follow. I had ultra small Teflon coax in my junk box so I took a piece, removed a piece of insulation from one end, tinned it and stripped it back leaving a small amount of braid to attach a bare wire to as one side of the primary. The center became one side of the secondary. Then I made 2 full turns on the binocular core, marked the cable and removed it. Removed the outer insulation of the extra cable that was not inside the core so I ended up with about? 5 inches of cable with? ~2.5 inch of insulation? removed. I then tinned the area close to the insulation and scored it with an exacto knife so that just about 1/16 inch of braid was left.and removed the rest of the braid. So, at this point the cable is as follows . one side center wire tinned and the about 1/16 braid has a piece of bare wire then a 2.5 inch long piece of cable with insulation and braid with the insulation ending showing 1/8 (or shorter) of braid and the center going on another ~2 inches (I used a random long enough piece to make the task easier and then trimmed back the center) now I wound the cable end with the insulation and braid on the torroid for full 2 turns and attach a piece of bare wire to the braid for the second primary connection. So now it looks like this: A binocular core with 2 turns of coax with 2 connections to the shields, one side center about 1 inch and the other side center about 2 inch. Now take that 2 inch center piece and put it through the core one more time for a full turn. Now you have 2 turns of the shield as primary and 3 turns of the center as the secondary. The 100pf cap went parallel to the primary winding it improves the output power. I might build a transformer with 2 cores to see if it is still needed. Why Teflon? Because I had it and? because it doesn't melt when soldering to it. Tinning the screen of Teflon coax is easy and trimming it also.
John
