#17 - Sound-in-Syncs Part 1: BBC/IBA equipment history, testing and experiments

Today we dive into the mysterious world of SiS. CHAPTERS: 00:04 Intro 00:44 Brief technology introduction 01:58 Survey of the equipment we have for this video 04:09 Company intro: PYE TVT 06:22 Company intro: RE Technology 09:09 Reproducing a rather large early problem of UK stereo sound 17:08 Testing the BBC's SiS equipment 29:39 Testing the LDM1904's reframer 30:42 Torture testing the BBC's SiS equipment with the PM5570 35:57 Why TVT DCSIS and RE DSIS are incompatible 39:28 Attempting to record / play back SiS using a consumer VHS recorder 44:20 Wrap-up I have covered much of what was mentioned in this video:    • IBA Engineering Announcements - Graham Saw...   But there is nothing like hearing it from the actual people involved ;-) DSIS Manuals: Service manual: https://techmattmillman.s3.amazonaws.... Operators manual: https://techmattmillman.s3.amazonaws.... The only publication I have ever found which talks specifically about PYE/Varian DCSIS: https://www.bbceng.info/Eng_Inf/eng-i... The RCA SiS concept is described here (starts page 158): https://techmattmillman.s3.amazonaws.... Since the PM5534 video I have also located (and scanned) the full PM5570 manual: https://techmattmillman.s3.amazonaws....