Re: question re performance of bidirectional amplifier (corrected)

ajparent1 <kb1gmx@...>
 

Edited. inline comments.

--- In BITX20@..., "eternalesquire" <eternalsquire@c...>
wrote:
I wired up a second stage and checked it against the schematic as I
was doing it, every trace is accounted for.
Another thought..

One possible is that the 10 ohm emitter resistor (in series with
capacitor) is not 10 ohms! It is sometimes easy to get 100ohm
and 10 ohm by error. Rough calculation suggests that might be the error.

Another source of error is if any of the capacitors are not
the correct value (too small).

I'd also check the transistors used. Is the gain going TX and RX the
same? It could be possible one transistor is shorted collector to
base internally.

Just thinking out loud.

Allison
KB1GMX

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