Howdy. I've got a VHT Special 6 Ultra that was purchased for the singular purpose of demoing pedals for videos. It needed a couple things to make it more flexible. Firstly a selectable bright cap on the "Ultra" channel. It's really dull under half. Added diode clipping per Rob Robinette's instructions.
The two places I could use a little help is the variable power control and installing a master volume. The power sag sounds awful at any setting. entirely useless. to bypass it would I just solder the wires from pin 3 and pin 2 of that control together so it is set at "max" or would it be best to bypass the entire section, mosfet, zener, and all? If im not mistaken, it would be jumping from node 75 to node 54. or will leaving it in-circuit but set to max essentially be the same?
"why not just leave it?" great question. I intend to use the 1M pot and it's ground connection for the master volume, outlined here https://robrobinette.com/Special6UltraMod.htm#Master_Volume
my hope is that I will now have a much more flexible crunch sound and not get evicted for turning the channel volume up to 1.
The two places I could use a little help is the variable power control and installing a master volume. The power sag sounds awful at any setting. entirely useless. to bypass it would I just solder the wires from pin 3 and pin 2 of that control together so it is set at "max" or would it be best to bypass the entire section, mosfet, zener, and all? If im not mistaken, it would be jumping from node 75 to node 54. or will leaving it in-circuit but set to max essentially be the same?
"why not just leave it?" great question. I intend to use the 1M pot and it's ground connection for the master volume, outlined here https://robrobinette.com/Special6UltraMod.htm#Master_Volume
my hope is that I will now have a much more flexible crunch sound and not get evicted for turning the channel volume up to 1.
