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02-01-2024, 05:48 AM
(This post was last modified: 02-01-2024, 05:51 AM by Looselectron.)
Hi! They call me Adam Smith. What do I do to an amp that has a MOSFET voltage controller for its power tubes that FAILED TWICE??
First of all, I ordered a replacement. At the same time, I ordered the SV2+VCK kit for my VHT Special 12/20RT head but the instructions say make sure it's working properly without power scaling. I think I have the amp almost working without the original voltage starvation circuit but need to compare the test voltages against my second VHT Special 12/20RT combo (for a stereo rig) that still works...for now.
It occurred to me to try installing the VCK first in the working combo to see if it makes any difference with the existing WATTS circuit before the SV2 in the head I have on the bench. Interestingly these amps have a RETURN control on the effects loop which effectively works like a master volume so I think I can safely omit the Drive Compensation control for this installation.
Updates to follow...
First of all, I ordered a replacement. At the same time, I ordered the SV2+VCK kit for my VHT Special 12/20RT head but the instructions say make sure it's working properly without power scaling. I think I have the amp almost working without the original voltage starvation circuit but need to compare the test voltages against my second VHT Special 12/20RT combo (for a stereo rig) that still works...for now.
It occurred to me to try installing the VCK first in the working combo to see if it makes any difference with the existing WATTS circuit before the SV2 in the head I have on the bench. Interestingly these amps have a RETURN control on the effects loop which effectively works like a master volume so I think I can safely omit the Drive Compensation control for this installation.
Updates to follow...
