Jobair Ahmed
Member
Can anyone tell me the Primary and secondary voltage of this kind of transformer? it's a 9:5:1 U87 Microphone Transformer
i want to build it by myself but i need to know the primary and secondary voltage.
the main reason is i live in Bangladesh, i can't find these kinds of transformers in local market and if i bring it from Ali express it will cost me more than $60-65 USD for a single transformer.
i want to build ORS 87 Stripped down microphone
https://groupdiy.com/threads/open-s...7-stripped-down-u87.86814/page-3#post-1137386
like this
please help me out to build this transformer
i have some small transformers which i collect from damaged Desktop Power supply.
View attachment 1645133295UTM_Catalog2B_025.jpg
i want to build it by myself but i need to know the primary and secondary voltage.
the main reason is i live in Bangladesh, i can't find these kinds of transformers in local market and if i bring it from Ali express it will cost me more than $60-65 USD for a single transformer.
i want to build ORS 87 Stripped down microphone
https://groupdiy.com/threads/open-s...7-stripped-down-u87.86814/page-3#post-1137386
like this
please help me out to build this transformer
i have some small transformers which i collect from damaged Desktop Power supply.
View attachment 1645133295UTM_Catalog2B_025.jpg
