BTW Phil, what you heard on 10 meters from here the other night was a pair of Antek power transformers uses as a modulation xfmr.
As I stated earlier we tried various phasings with no success. I will keep asking, what is the correct schematic? Show us one that is known to work on a DX-100 or Apache or whatever and post it here on the Zed so there is no guesswork and everyone can use it and repeat the results. Text can be ambiguous and imprecise. Pheel
per your request: This is the thread: http://amfone.net/Amforum/index.php?topic=27820.0 Below is the attached schematics.
Yes. that is where I got my schematic. The only difference is in my schematic signal flow is from Left to Right. The "B" schematic above is exactly the same as my schematic; point X is my Yellow or N/C wire. Pheel
What do mean "I don't?" No one is showing a reactor inductor nor a reactor coupling capacitor. The discussion is about the Turbomod modification to the likes of DX-100's and Apache's. I.e., what is the correct schematic interpretation for the Turbomod discussion at https://www.amwindow.org/tech/htm/dx100.htm . Do you have something technical to add? Pheel
Just like any other modulation transformer, a turbo-connected one can be operated with or without a blocking capacitor and reactor. It may not be necessary when it's a turbo-connected modulation transformer that was designed to carry DC to begin with, but would be a practical necessity when using a power transformer, whose core is interlaced and has no gap. Another thing that is possible when using the blocking cap and choke with a modulation autotransformer, is to run separate power supplies for modulator and final, and thus different B+ voltages on the modulator tubes and final amplifier tubes.
I thought you had to take the current off the secondary. I tried two of the large antec toroidal transformers and they sounded nasty no matter how I connected them. Borgi told me you had to take the current off the secondary and I gave them away. Maybe its different when done as an autotransformer?
