How to increase bias voltage on A15MK2

deliturko

Hi,

I want to try over 35ma in my amp but the bias pot is already all the way up.Now I should change my bias resistor right ? But which is the bias resistor, R63?

Thanks

eBernd

Hi,

if you lower R63 you can come to higher bias currents

- and fire and hazard and other damages for which I will take no responsibility

:eek:

You have to know what you are doing - and the question shows me you don't...

Bernd

deliturko

I know it will cause a dangerous situation.I just want to bias a bit hotter not much than 80 percent of my power tubes dissipation.I have TAD 6V6's.

As I said before bias pot is all the way up and max bias voltage is 35.4 ma.For 80 percent, I need 40 ma right ? (14watts for max plate dissipation)

Any suggestions about the new value for the bias resistor ?

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