Quote:
Originally Posted by Robert Bergeron
Interesting second paragraph . What does it mean ?
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It means they used the intercom amplifier to drive the loudspeaker once they were set-up in position. (More power available than from the 'A' set audio output stage.)
You should be able to drive that at a reasonable level from the 'A' set, just use about a 70 ohm resistor in series with one of the loudspeaker terminals and connect it to the 'phones' output in a droplead or the terminal block in the control unit. Add more series resistance if too loud, reduce if not loud enough, but 70 should be enough to keep the 'A' set safe from overload.
I'll give it some more thought later. (There may be diagrams!)
Chris.