Maximum plate voltage for el84

[crazyeddie]

My RM22 has a plate voltage reading of 390 volts according to the tech I sent my amp to get fixed under warranty. I thought typical plate voltages for el84's should be in the 250-300v range. If that is true shouldn't the bias point adjustments be well below the recommended 15-22mv even if the plate voltages were in spec? What is a typical RM22 supposed to run at? Does anybody have a schematic that I can download?

 

[bmi]

google for EL84 you should find a datasheet.

http://pdf1.alldatasheet.fr/datasheet-pdf/view/95279/PHILIPS/EL84.html

 

[crazyeddie]

Thanks bmi but I have plenty of data on el84's. I'm looking to find out if the plate voltages in my amp are typical of an RM22 and if they are what is the actual recommended bias point voltage settings. Anybody have any comments on this?

 

[Jaded Faith]

No, that's high. I just had an RM22 on the bench and was reading 324V.