[AMRadio] Thank You and Toroidal transformers


Pieter Gerlach Pieter at FreeToBe.de
Fri Dec 29 07:25:52 EST 2006


Greetings Amiable AMers,

I am a real neophyte in HAM and AM radio but i. at least recognise, that this is the group that leads the pack when it comes to genuine knowledge and practical experience. As the New Year approaches, i want to express my gratitude for the wealth of information which has come my way thanks to you. As i am a farmer who still works the land with horses, i appreciate the importance in keeping the old, tried and time-tested ways alive; not just for nostalgia's sake but for the time when radios and the written word might be one of the sole sources of communication. If one of those $10,000 digital voodoo boxes breaks down there are only a few select experts that can even diagnose, much less fix the problem. I take off my hat to expose my bald head to all of you!!

As an added favour could anyone tell me what sort of toroidal core i would need to transform 75 to 50 0hms. I was given a large quantity of CATV hard-line and read that it would be well to match the impedance to the antenna and the transmitter. Or do you think the Pi-network in the P.A. would be able to match the 75 ohm? I would at leat like to know which cores from Amidon would be the right ones in case i just want to construct a few transformers for experience sake. Thanks so much for any help you can give me.

Happy New Year to each and everyone!
Pieter VE1PPG


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