File:Replacement of 4066 switch with optorelays - testing implant.jpg

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English: Replacement of 4966 or 4066 CMOS switch with low-Rds optocouples - daughterboard implant. With ballast resistors of 1.5 kOhm it would fit both Marantz SD-60 / Revox C-115 (no mods other than removal of stock 4966) and Revox B215 (will need shorting of R83, or a lesser value of R83 - say, 470 Ohm; R84 may be removed altogether). The DIP14 contact pins are hidden under DIP8 sockets.
Русский: Замена КМОП-переключателя 4966 или 4066 на МДП-оптроны 293КП3А. Испытания "импланта". Ряды контактов под DIP14 скрыты под панельками с оптронами. Балластные сопротивения в 1.5 кОм рассчитаны на монтаж в Marantz SD-60 / Revox C-115 (без каких-либо переделок кроме собственно демонтажа 4966) и в Revox B215 (потребуется закоротить R83 и желательно, но не обязательно, убрать R84).
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Author Retired electrician
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The original 4966 in the Marantz. There's plenty of free space for an implant

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current19:13, 18 June 2023Thumbnail for version as of 19:13, 18 June 20231,105 × 1,105 (511 KB)Retired electrician (talk | contribs){{Information |Description={{en|1=Replacement of 4966 or 4066 CMOS switch with low-Rds optocouples - daughterboard implant }} {{ru|1=Замена КМОП-переключателя 4966 или 4066 на МДП-оптроны 293КП3А. Испытания "импланта". }} |Source={{own}} |Date=2023-06-18 |Author= Retired electrician |Permission= |other_versions=thumb|left|schematic [[File:Replacement of 4066 switch with optorelays layout.png|thumb|left|layout...

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