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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