That's what I did first but they do at least pretend they have no info left on this older model duplexer. But the typical Sinclair instruction leaflet (some are available for other models on repeater-builder and on Sinclair's website) doesn't reveal such info anyway.
Duplexer manufacturers in general do guard everything as jealously as they can. 73, Martin --- In Repeater-Builder@yahoogroups.com, "Eric Lemmon" <wb6...@...> wrote: > > Martin, > > The best place to get that information is from the company that built it. > Contact Sinclair Technologies at 800-263-3275. > > 73, Eric Lemmon WB6FLY > > > -----Original Message----- > From: Repeater-Builder@yahoogroups.com > [mailto:repeater-buil...@yahoogroups.com] On Behalf Of cruizzer77 > Sent: Saturday, August 08, 2009 12:54 AM > To: Repeater-Builder@yahoogroups.com > Subject: [Repeater-Builder] Sinclair R2B12 duplexer > > > > Does anyone have technical info (i.e. tech drawings) or inside pics of these > duplexers? I wonder how they do the shortening as there can't be a 1/4 wave > resonator for 2m inside this 19" box... > > Regards > Martin >
