[HomeBrew] Replacing "air-dux" type coils with toroids???

[kwylow zinjanthropus]

All:
I just received a "jewel in the rough" Lysco 600S transmitter. Looking inside the 807 rf cabinet, it looks like the tank coils (particularly the plastic) is getting cooked. I don't know if this will stand several more years of usage and I have been thinking of replacing the coils with 1) replacement NOS B&W/Air Dux stock or 2) finding Amidon or equivalent toroids to take their place. My concern is the circulating current/power handling capability of the toroids to handle the output and heat of the tube. However, I have seen applications of the toroids acting as extra impedence in circuits such as lowering a Viking Desk KW to 160 m. How do you think this type of conversion will fair with the Lysco at 50 watts input? Looking for your comments and thanks. Cal (too many projects) E. N6KYR. 


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