A
A-Xul
New member
Hi guys,
I have a question to the more amp-tech experienced users around here.
I want to change a preamp tube in my VH4. It's the V4 position.
My amp tech said I can just remove the back panel and change the tube if my hand fits. I don't have to remove the chassis from the head shell.
The Diezel manual on the other hand says to not remove the chassis or touch any parts inside the amp as it contains lethal voltages.
I'm not an amp tech, but I did change preamp tubes before in my Mesa Lonestar combo, which was pretty easy to do.
My question is, did you guys change preamp tubes like that in your VH4? From my basic amp knowledge, the lethal voltages are inside the actual chassis not on the metal plate itself guarding it. As you know, the caps and transformers as well as the power tubes are also accessible on the outside of the chassis in the VH4 and I'm kinda afraid to touch them by accident. This was not a problem with my Lonestar.
Of course I would have the amp off and cold when doing that, meaning shut down for a long period of time before doing this.
What do you guys think?
I have a question to the more amp-tech experienced users around here.
I want to change a preamp tube in my VH4. It's the V4 position.
My amp tech said I can just remove the back panel and change the tube if my hand fits. I don't have to remove the chassis from the head shell.
The Diezel manual on the other hand says to not remove the chassis or touch any parts inside the amp as it contains lethal voltages.
I'm not an amp tech, but I did change preamp tubes before in my Mesa Lonestar combo, which was pretty easy to do.
My question is, did you guys change preamp tubes like that in your VH4? From my basic amp knowledge, the lethal voltages are inside the actual chassis not on the metal plate itself guarding it. As you know, the caps and transformers as well as the power tubes are also accessible on the outside of the chassis in the VH4 and I'm kinda afraid to touch them by accident. This was not a problem with my Lonestar.
Of course I would have the amp off and cold when doing that, meaning shut down for a long period of time before doing this.
What do you guys think?
