Urei 21 schematic

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carlmart

Well-known member
Joined
Apr 24, 2014
Messages
56
A friend of mine has an Urei 21 mic preamp, that he uses to trace speakers response.

It started  working weirdly, and the problem seems to be on the preamp.

No luck in finding it yet. Any suggestions?
 
you can find just about every urea schematic here
http://www.jblproservice.com/navigation/Vintage%20JBL-UREI%20Electronics.html

just hover the correct model number. I have never heard of a urea 21
 
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