aboalghadb
New Member
I found this circuit in old book about electronics and this circuit related to PHILIPS company.
this circuit is used to magnificate the telehpone call when it put beside the telephone.
I want to ask about the transformer coupling i don't find it . how can i make it or replace by R coupling or RC coupling ?
i need help
the picture is attached
this circuit is used to magnificate the telehpone call when it put beside the telephone.
I want to ask about the transformer coupling i don't find it . how can i make it or replace by R coupling or RC coupling ?
i need help
the picture is attached