Схема, управляющая ключами, переключающими C ref формировать импульсы постоянной длительности, которые короче полупериода самой возможной высокой входной частоты. Схема на операционнике организует разрядный ток накопительного конденсатора.
super interessant , la demo de calcule a la fin puis la courbe sur excel ,c'est impeccable, toujours epater par vos videos, encore un grand merci pour le partage c'est a chaque fois un reel plaisir..
Nice construction indeed and excellent reverse engineering as always, thank you for the explanation. One of the display segments seems to have intermittent brightness, why do you think that is? (the digit left of the decimal point, upper right segment) I wonder if it's a display fault or driver fault? This DB1536Q chip dates from around 1997, listed for around $1600 USD. Older variants of it existed in the late 80's, being used in various similar instruments.
This issue was less visible with naked eyes. The issue can be the driver inside the display assembly or the display itself. It can be also the zebra connector if any.
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Your channel is just gold 🪙
Great job sir
very good this job, im work with to in brazil, some most the time i have dificult to find parts
Схема, управляющая ключами, переключающими C ref формировать импульсы постоянной длительности, которые короче полупериода самой возможной высокой входной частоты. Схема на операционнике организует разрядный ток накопительного конденсатора.
Hello, merci pour l'explication !
I assume the little fault on the display segment is the reason why it was taken out of service.
super interessant , la demo de calcule a la fin puis la courbe sur excel ,c'est impeccable, toujours epater par vos videos, encore un grand merci pour le partage c'est a chaque fois un reel plaisir..
Nice construction indeed and excellent reverse engineering as always, thank you for the explanation. One of the display segments seems to have intermittent brightness, why do you think that is? (the digit left of the decimal point, upper right segment) I wonder if it's a display fault or driver fault? This DB1536Q chip dates from around 1997, listed for around $1600 USD. Older variants of it existed in the late 80's, being used in various similar instruments.
This issue was less visible with naked eyes. The issue can be the driver inside the display assembly or the display itself. It can be also the zebra connector if any.