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Old 19th Jun 2022, 11:14 pm   #2
Trevor
Octode
 
Join Date: Aug 2006
Location: Stoke-on-Trent, Staffordshire, UK.
Posts: 1,082
Default Re: Quad 303 pop on switch on

Does it pop when the input is disconnected ? You may have a small dc offset on the input from the pre-amp This would suggest a leaky coupling capacitor
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