hi,
a friend is bringing over his marshall stack tomorrow. Apparently, it has gone to half volume at least once. He thinks the tubes stop glowing when this occurs.
I thought I would start by chopsticking all board/tube/output txfm connections and hope that something is loose.
Any other suggestions?
thanks,
Dave
half marshall 100 watt cutting out
Moderators: pompeiisneaks, Colossal
Re: half marshall 100 watt cutting out
clean/re-tension sockets...
D
D
There are no stupid questions, just stupid people.......
Re: half marshall 100 watt cutting out
In a tube amp the first suspects should always be the tubes.
How long since he replaced the power tubes?
Since you mention half power, check the power tubes.
They have a finite life span.
The V2 tube gets hammered pretty hard in Marshalls as well.
So always check the tubes first. Take a known good tube and substitute it for each preamp tube.
If that doesn't fix it, then on to the power tubes.
How long since he replaced the power tubes?
Since you mention half power, check the power tubes.
They have a finite life span.
The V2 tube gets hammered pretty hard in Marshalls as well.
So always check the tubes first. Take a known good tube and substitute it for each preamp tube.
If that doesn't fix it, then on to the power tubes.
Tom
Don't let that smoke out!
Don't let that smoke out!
Re: half marshall 100 watt cutting out
i've had this a few times both were preamp related.
My Daughter Build Stone Henge