Recent content by oneblackened

The preamps are so similar that the early 2-channel rectos are almost identical, and while there's been changes since the OD channels retain much of that heritage. The power supply and power amp are considerably different - the SLO runs about 30V higher B+, has a much larger OT (no joke, it's 2x...

Hi all - Beyond the obvious (different OT and loop), what are the actual differences between a Rev F and Rev G 2 channel dual? I've not found a Rev G schematic anywhere and I don't trust the Rev F one all over the internet - we all know how Mesa draws in errors intentionally.

Did the mod, and I like it a lot. Clips to come today. Here's what you need: - Soldering iron - Electrical tape - needlenose pliers - wire - 4.7 nF capacitor (I used a panasonic film cap) - different values can be used here to sub in different low end center frequencies, with larger values...

Ah, see - the tight low end isn't a problem for me. It's the fact that I can't have the controlled top end in Vintage mode as well as big chest thumping lows. Without a depth control, negative feedback is at its maximum for low end always. Since I don't like modern mode anyway, I may just jump...

Adding a depth control a la a 5150 - a low end control in the NFB loop.

Hi all, first post here. Anyone tried this? I like the controllable top end presence of red vintage mode, but I miss the low end thump for palm mutes. I've drawn out a schematic but I'm curious if anyone has tried this.