DIY EL34Bs to Roadster?

[Explorer81]

Ordered 4 TungSol EL34B tubes for my Roadster. So, changing tubes is new stuff to me, is it that simple that i change the tubes (stock 6L6´s) to TS EL34Bs and flip the bias switch to EL34, thats it? Ready to rock with no worries?

 

[Spewnz]

yes thats all there is to it be gentle and make sure there in all the way

 

[KH Guitar Freak]

Assuming they were ordered rated for use in Mesas, all you have to do is remove the installed valves, and replace them with the Tung Sols. Then flip the bias switch to EL34s, then proceed to run it as per normal valve amp use...

 

[ibanez4life SZ!]

Yup....it's VERY important that you let the vendor know it's going into a Mesa.

Eric

 

[Heritage Softail]

Some old school tube voodoo says to turn on the amp and let the power tubes burn in for an hour before having a go at it. Not sure if that works or not. But I do. But then again I had my lucky T-shirt for high school football....

 

[KH Guitar Freak]

Some old school tube voodoo says to turn on the amp and let the power tubes burn in for an hour before having a go at it. Not sure if that works or not. But I do. But then again I had my lucky T-shirt for high school football....

A lot of valve sellers actually help you burn in the valves for 24 hours before being shipped or sold to you. Or at least, that what all the valve dealers have done for me on my valves...

 

[fluff191]

A lot of valve sellers actually help you burn in the valves for 24 hours before being shipped or sold to you. Or at least, that what all the valve dealers have done for me on my valves...

Same here. I still let the tubes sit for about 30mins after I bias them though.

 

[Explorer81]

So the EL34b´s i got are two matched pairs, first pair are matched at 33,0-33,1mA and second pair 33,8-33,9mA rating, am i safe to go? First pair goes to slots 1 & 4 in power tube section and second pair to slots 2 & 3, am i right?