China-mic bias-mod pictorial

Johan's simple circuits..

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muff1

Date: 03/16/2009 Views: 670

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China-mic bias-mod pictorial

a photo guide on how to mod and bias the common China made U87 copys..the mic's themself are allright, but the FET selection probably just didnt happen...here is how you can bias them to get the headroom that the spec's say they have..read the comments!

Date: 02/23/2006

Owner: Johan Blomdahl

Size: 15 items

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stock mic Date: 02/23/2006 Views: 1038	open chassis Date: 02/23/2006 Views: 996	pcb Date: 02/23/2006 Views: 991
back of pcb Date: 02/23/2006 Views: 925	components removed Date: 02/23/2006 Views: 956	C4 moved Date: 02/23/2006 Views: 979
mount trimmer Date: 02/23/2006 Views: 1023	check voltage Date: 02/23/2006 Views: 949	adjust bias Date: 02/23/2006 Views: 1065

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