Engl Invader 150 bias

[guitarxtc]

How to bias Engl Invader 150 with Multimeter?

 

[shadowdevourer]

I have the same question for blackmore. I found the trim pot but not sure where the crocos should go

 

[Jens Kruse]

I have the same question for blackmore. I found the trim pot but not sure where the crocos should go

Hello, the traditional "Shunt" method is used by techs to bias amps like ENGL. This method, using just a Multi Meter is dangerous and could kill you. If you want to bias the amps yourself safely I'd suggest to get a bias adapter tool that measures the plate voltage as well as the idle bias current.

 

[shadowdevourer]

Thank you, I'll look for an adapter then.