neazoi
Advanced Member level 6
Hello, my oscillator **broken link removed** couples to the next stage through a capacitor.
But I have also found it coupled with a transformer.
https://www.qsl.net/va3iul/Homebrew_RF_Circuit_Design_Ideas/Low_Phase_Noise_X-tal_LO.gif
What are the benefits of using a transformer? One I found is that in the capacitor solution the grounds of the oscillator and the following circuit are connected together. with the transformer they could be completely isolated. Also the output could be balanced or unbalanced (if one end of the output side of the transformer id grounded) am I right?
For a 1-30MHz transformer how many turns ofn a ftXX-43 core do you propose for the primary and secondary?
But I have also found it coupled with a transformer.
https://www.qsl.net/va3iul/Homebrew_RF_Circuit_Design_Ideas/Low_Phase_Noise_X-tal_LO.gif
What are the benefits of using a transformer? One I found is that in the capacitor solution the grounds of the oscillator and the following circuit are connected together. with the transformer they could be completely isolated. Also the output could be balanced or unbalanced (if one end of the output side of the transformer id grounded) am I right?
For a 1-30MHz transformer how many turns ofn a ftXX-43 core do you propose for the primary and secondary?