Radio Theory and design
Thursday, January 6, 2022
Using a DBM as a modulator for my KKMOON generator.
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Silly me bought a KKMOON Dual Channel Generator. Nice little generator but it has to be programed. When I used Windows XP I could attach to...
Monday, January 3, 2022
IF transformer coupling continued
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You can see the output swing as the coupling increases. The frequency shift because the loading draws inductance from the primary. I can not...
Sunday, January 2, 2022
IF transformer coupling
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As you scan the sims observe K, OUTPUT currents. You should observe at K=0 there is no coupling. At low values of K the output picks up qui...
Winding the cores
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This is a commercial transformer. The picture is easier to see than mine. They wrapped the cores to the outside. I put my winding through ...
Thursday, December 30, 2021
DBM transformers
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The progression of DBM transformers: The top one is wound on the type core The Chief designer and I used in the original 40/80 receiver. He ...
2 comments:
Sunday, December 19, 2021
Reflex - RF and AF share an amp
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You can look the screen shots over and see both RF and AF is passing threw the stages. This was my original circuit. A quick look at the ...
Tuesday, December 7, 2021
In search of the elusive Q!
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We hear about the Q sometimes as though it is impossible to comprehend. I will attempt to help clear some of the allusion. The Q is simple ...
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