[ARC5] Interphone Amp

[WA5CAB at cs.com]

P/O RC-73 Interphone System.  Used in early primary training aircraft as 
the system uses internal dry batteries (aircraft does not have to have an 
electrical system).  See T.O. 08-10-103.

In a message dated 10/27/2012 22:27:11 PM Central Daylight Time, 
mmckeown at tde.com writes: 
> An acquantance of mine has an interphone amp BC-709-C and I know nothing 
> about it.  Anybody know what this is for?  Thanks!
> 

Robert Downs - Houston
wa5cab dot com (Web Store)
MVPA 9480