Antenna Loading coil holder for vertical antenna
thingiverse
Made this for converting an old CB antenna to HF. The inner diameter is 35 mm. If you make a threaded brass rod and make a wheel on it. Could you do manuel tuning for the different bands. Kind of tuning coil idea. Can be done manually or with some modification with a stepper motor. It's just an idea... 2 model to print with or without so-239 hole. Free to use!! But don't sell my designs! Made it for me and all the other Hamradio friends who can use it. 73
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