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yes the pi filter is intended to help isolate the bias circuit from the rf,
i will try an extra resistor to load the pass transistor the next time im playing with that type circuit,
right now im building a bench in the spare room so that i can get back to playing radio

[QUOTE="bob85, post: 164894, member: 18"] yes the pi filter is intended to help isolate the bias circuit from the rf, i will try an extra resistor to load the pass transistor the next time im playing with that type circuit, right now im building a bench in the spare room so that i can get back to playing radio;) [/QUOTE]

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