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EF86 and microphonics

11/4/2004 5:48 PM
MarkBEF86 and microphonics
Is the much-noted problem with microphonics in EF86 tubes a design problem, or was it just a matter of poor QC in some company's runs? Another way to ask is are NOS tubes subject to microphonics, or is it a post-tube era mfg. problem? On a NOS tube vendor's site output quality is pushed, but there's no mention of possible microphonic probems.  
 
 
 
MarkB

 
Replies:
Mark Lavelle I've only used an EF86 in one amp (... -- 11/4/2004 11:24 PM
Chris @ CMW amps Hi MarkThey're just... -- 11/5/2004 2:02 AM
Dave James Mark,I use the circ... -- 11/8/2004 12:50 PM