schelemixer

thisisasimpleanalogvideomixerbasedonthelm1881syncseparator

thereisacrossfadercrossdissolve50inthecenterandafadeeffectwith3settingsthefadeeffectquicklychargesacapacitorwiththevideosignalandslowlydischargesitbackintothevideosignalselectingthefilterwillfilteroutthecolorinformationresultinginablackandwhiteimage

becauseallvideodeviceshaveslightlydifferentvideosyncspeedstheselectedvideowillstandstillonthescreenandtheothervideosignalwillscrollhorizontallythatiswherethenameschelecomesfromwhichisdutchforcrosseyed

itworksbytakingthesyncofoneofthetwoconnectedvideosignalsandpushingitundertheoutputvideosignal
soblankingperiodswillpartiallybeignoredmakingitnot100percentvalidvideosignal

inthe2bversionextraeffectsareaddedthatwhenturnedoncandistortthevideosignalsomuchthatitwillbetobadfordisplayingitonavideoprojectorthiscanbesolvedbyaddingatimebasecorrectororyoucanconnectitdirectlytoaanaloguetv
theseeffectscanveryquiteabitdependingonthedevicethatyouconnectittosotrydifferentdevicesfordifferentresults

compatibilityntscandpal

links
buykitorassembled
assemblinginstructionsversion2b
assemblinginstructionsversion2c

schelemixer2bscreenshots
schelemixer1

screenshotsv1
schelemixer2c
schematicsv1
scopesyncfromotherchannel
schelemixer2

vimeo225134397 vimeo48948735
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