All,
Ok, most know how splitter/combiner transformers work in solid state amps.
Here's the question, how can an amp work using two sets of push-pull amps,
having a conventional combiner, but not have a splitter in the front end? What
this amp has is a divider network made up of a RC network using several
resistors in paralell with a capacitor on either side of the RF input. In other
words, when the RF comes into this RC divider, it applies RF equally to both
sets of push-pull amps at one time. There is no splitter transformer there. How
can this work by having both push-pull sets on where they should be 180 degrees
out of phase, and one being off while the other is on? To use a combiner
transformer, the RF from one set makes 1/2 wave and so from the other set. The
combiner then adds these two halves together making a full sine wave. So, how
can this work having RF going to both sets at once instead of using a splitter
which would put them 180 Deg out of phase? This absolutely has
me stumped. By the way, it's for an Ameritron ALS-500M.
One last question, most combiners/splitters use a 100 ohm resistor in paralell
with it's inputs for a 50 ohm load. How can this work if the resistance is 200
ohms? That would be for a 100 ohm load wouldn't it?
Best,
Will
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