schelemixer

thisisasimpleanalogvideomixerbasedonthelm1881syncseparator

thereisacrossfadercrossdissolve50inthecenterandafadeeffectwith3settingsthefadeeffectquicklychargesacapacitorwiththevideosignalandslowlydischargesitbackintothevideosignalselectingthefilterwillfilteroutthecolorinformationresultinginablackandwhiteimage

becauseallvideodeviceshaveslightlydifferentvideosyncspeedstheselectedvideowillstandstillonthescreenandtheothervideosignalwillscrollhorizontallythatiswherethenameschelecomesfromwhichisdutchforcrosseyed

itworksbytakingthesyncofoneofthetwoconnectedvideosignalsandpushingitundertheoutputvideosignal
soblankingperiodswillpartiallybeignoredmakingitnot100percentvalidvideosignal

inthe2bversionextraeffectsareaddedthatwhenturnedoncandistortthevideosignalsomuchthatitwillbetobadfordisplayingitonavideoprojectorthiscanbesolvedbyaddingatimebasecorrectororyoucanconnectitdirectlytoaanaloguetv
theseeffectscanveryquiteabitdependingonthedevicethatyouconnectittosotrydifferentdevicesfordifferentresults

compatibilityntscandpal

links
buykitorassembled
assemblinginstructionsversion2b
assemblinginstructionsversion2c

schelemixer1

schelemixer2

schelemixer2bscreenshots

schelemixer2b

schematicsv1

scopesyncfromotherchannel

screenshotsv1

schelemixer2c

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