[Antipodal]

Hi Ron,

 Thank you for the quick reply. You are right about the DRECO aspect of the Philco line here in N.Z. To be honest , I had not thought of trying the NZVRS library (which I use extensively ) because I had assumed that this intercom was a U.S. product.
 I am making progress with the set , though, nutting out the layout of the lever switch this very morning and I've got the output to switch over nicely between the remote station and the master. Now to tackle the input.
Incidentally the case for this master is wooden, of the venetian blind variety, if you get my drift. I think someone else alluded to this cabinet style in another thread.
But  the third lead from the output transformer still mystifies me, though the whole thing itself goes.
Cheers and best wishes and thanks again for the reply,

 David Fahy