Should I modify my MESA Express? 

In this video I explain the rationale for modifying my MESA Express 5.25 Guitar Amplifier. We look at a brand new set of MESA labeled EL84 tubes and discover how hot the amp is biased.
I do apologize for the length of this video. The testing of tubes starts at 8:30
or so.
Amazon Affiliate link to JJ EL84 tubes (I like these tubes, and will run them after I can adjust the bias in the amp): amzn.to/3YtbSNX
MESA Brand EL84 from ZZounds: www.zzounds.co...
Please note: What is presented here covers what I did to purchase, install and use this item. You should check your own local codes and consult a professional prior to using any item demonstrated in this video.