Vox AC30 6TB - A Swing and a Miss!
Not every repair ends in the velvety sheet cake of success that I’ve become accustomed to. Mopsey’s Korg/Marshall era Vox AC306/tb came to me with a serious case of the snap, crackle, pops. My wife plays exactly this same amp, so I cranked up the overconfidence knob and acted like I knew what I was doing. The phase inverter tube was limping along, and the power tubes were extra crispy. Of course they were; this is an AC30. They go through power tubes like they were 50cal ammunition… hot and fast. I retubed the amp, checked out the bias resistors, played it for a few days, and sent it on its happy way. Two days later it was back. Turns out that the output transformer was bad. Not bad enough to completely cut out, but bad nonetheless. I installed the new transformer and the amp instantly sounded healthier. Of course in doing all of this I completely forgot to take a picture for this blog. I either need to hire a full time blog writer, or hire an electrician and just concentrate on the writing myself. Has anyone ever been electrocuted by a blog? Anyway, enjoy this little slideshow of famous AC30s and check out Mopsey here, or even better at a local rock venue near you.