EL34 bias

Discussion in 'Hi-Fi and General Audio' started by melorib, May 18, 2007.

  1. melorib

    melorib Lowrider

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    Last night I got a quad of used Siemens from ebay, the bias was set to 40 mA for SED winged C...

    1 of the Siemens measured 45, 2 close to 40 and the last 20 mA... Is this normal, it could be the SED was different, but they where supposed to be matched... :confused:

    After, all kept bias more or less ok...
     
    melorib, May 18, 2007
    #1
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