Category Archives: trifilar

Scope issues resolved; measuring time constants

Today I finally got the monkey off my back with the trifilar and diode oddities. I actually don’t know what I did wrong before but this time the two diodes had exactly the same waveform on them, a turn-on of … Continue reading

Posted in bitx20, scope, signal generator, trifilar | Leave a comment

Trifilar trauma & construction styles

I decided to turn my focus to the trifilar transformer.  I’ve never really become familiar with these but it looks like the one used in the Bitx mixer is basically a 1:2 turns ratio transformer with a center-tapped secondary.  Maybe … Continue reading

Posted in bitx20, manhattan style, mixer, trifilar, ugly construction | 7 Comments