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Old 28th April 2012, 05:04 PM   #1
diyAudio Member
Join Date: Apr 2012
Default Newbie Bias help ?

Hi everyone. First I would say I never tried this before still I have pretty good "electronic skills" so I want to do it when I know how to...
Maybe it is a very complex thing to do but reading all different tutorials I almost fall a sleep each time.

Are there any BIAS tools out there that is pretty easy to use and simple to explain how to use them? If you know any can you please give me the brand and easy explain how it works? I would be more than happy... I want my amp to run good then I don't need to know all details about why/how as long I can fix it =)

Also how can I know what bias my amp should be tuned to ? It is not stated in any manuals. I have a ENGL Powepall 100 W amp head.

Last but not least which I guess is a stupid question.... Is it even possible to adjust bias on preamp tubes ? I guess not but I just need to ask =)

All inputs would be more than welcome. Thanks in advance.
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Old 29th April 2012, 07:44 PM   #2
DF96 is offline DF96  England
diyAudio Member
Join Date: May 2007
Maybe it is a very complex thing to do but reading all different tutorials I almost fall a sleep each time.
Drink more coffee. Read the tutorials again. Learn about things like load lines. The typical bias conditions for a valve will be given in the valve datasheet, but a particular amplifier may deviate from this for good or bad reasons.
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