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