Rect'o' 50 Combo

[Nightfly]

Hi, recently had a valve failure in this so re-valved the whole thing. Since I revalved it its too bright and its lost its 'dark' edge which I loved soo much. It has a switch on the back that would allow me to use EL34s instead of 6L6s. I really want the dark tone back but not sure whats happened or if I should consider the EL34 route. Any advice would help.

Thanks.

NightFly

 

[SneakyPete]

Here's an alternative to trying EL34's - try a GT 12AX7M (Mullard re-issue)in the V1 or V2 position in the preamp. This will definintely tame the highs and create a fuller sound.

 

[SixVeeSix]

Another dark preamp tube that is easy to find is the Sovtek 7025/12ax7WA. The WA designation is important, other designations may be much brighter. I used have used them to tame a too bright speaker/amp rig more than once. They are always available on ebay, don't pay too much for one. Common and usually frowned upon but can be useful sometimes.

 

[Nightfly]

Would a non Mesa valve require a Bias check ?

 

[SixVeeSix]

It is safe to sub out preamp tubes, just be careful trying different output tubes. Keep your eye on them in case they redplate!