not the answer
Geo, the FET circuit will fight (and defeat) you when you try to exceed the "design limit". Ten volts is about all I would suggest using. Changing to a 10V supply requires changing the feedback components (use 2N4392?) - or else removing them.
From my experience: a different approach should be used to gain appreciably more power output. Remember, we should operate the phase reference circuits at approximately 50-50 duty cycle.
In my opinion, this particular circuit can not be forced to deliver much more power - or else it will cause unacceptable non-symmetry of the transmitted wave and (especially) the phase reference voltage. How accurate would discrimination be, if it was fed a 55-45 waveform?? I don't enen like to see a 51-49 waveform!! (Well, that's just my problem. Not everybody needs to be a perfectionist.)
I can supply you some of my spice simulation circuits if you would like to experiment with LTspice (it's free). Some people would disagree, but I think it's pretty easy to use. Sometimes, it's almost likeable. It's up to you. Send a pm if interested.
I would like to have a real-life laboratory, but I still live in a shoe where there's not enough room available. temporarily............................... ........... ............. (time keeps marching on, and on, and on.... )
Geo, the FET circuit will fight (and defeat) you when you try to exceed the "design limit". Ten volts is about all I would suggest using. Changing to a 10V supply requires changing the feedback components (use 2N4392?) - or else removing them.
From my experience: a different approach should be used to gain appreciably more power output. Remember, we should operate the phase reference circuits at approximately 50-50 duty cycle.
In my opinion, this particular circuit can not be forced to deliver much more power - or else it will cause unacceptable non-symmetry of the transmitted wave and (especially) the phase reference voltage. How accurate would discrimination be, if it was fed a 55-45 waveform?? I don't enen like to see a 51-49 waveform!! (Well, that's just my problem. Not everybody needs to be a perfectionist.)
I can supply you some of my spice simulation circuits if you would like to experiment with LTspice (it's free). Some people would disagree, but I think it's pretty easy to use. Sometimes, it's almost likeable. It's up to you. Send a pm if interested.
I would like to have a real-life laboratory, but I still live in a shoe where there's not enough room available. temporarily............................... ........... ............. (time keeps marching on, and on, and on.... )
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