GlideOn
Member
As the title says, for a 68' YBA-1 what are the limits of the type of rectifier tube that can be added? It's got an extra 5v tap on the original transformer.
I've tried the wire-round resistor in series but it has a weird, non-linear ripple effect with heavy volume and not a lot of sag even at 800ohm.
Meanwhile I have this great 60s Raytheon 5U4, an extra tube socket and some time to install.
I have replaced the cap cans for dual F&T 50/50 a few years ago, I imagine this is at the limits of most rectifier tubes.
I'm currently running KT77s a little under-biased. Very happy with this setup as it gives a little Fender flavor and has fantastic, chimey cleans.
I've tried the wire-round resistor in series but it has a weird, non-linear ripple effect with heavy volume and not a lot of sag even at 800ohm.
Meanwhile I have this great 60s Raytheon 5U4, an extra tube socket and some time to install.
I have replaced the cap cans for dual F&T 50/50 a few years ago, I imagine this is at the limits of most rectifier tubes.
I'm currently running KT77s a little under-biased. Very happy with this setup as it gives a little Fender flavor and has fantastic, chimey cleans.