Topmusicanswers
- How long do Marshall valves last?
- What is the valve on a Marshall amp?
- How often should I change the valves in my amp?
- How do I know if my amp valve is broken?
How long do Marshall valves last?
When and how should I change my valves? Power valves should be replaced every 18 months to 2 years and all valves should be changed at the same time. The amplifier should then be re-biased. Preamp valves should be replaced every 4 years and can be replaced individually.
What is the valve on a Marshall amp?
EL34. Still used in many amps that Marshall produces today, the EL34 is a Marshall favourite, when creating the first Marshall amplifiers these were used in the place of the 6L6. The EL34 is a pentode, and the extra element (suppressor) reduces any losses in the valve.
How often should I change the valves in my amp?
“In theory, a valve should have a working lifespan of anywhere between 1,000 and 5,000 hours for common types, and up to 8,000 or so for the more rugged industrial/mil-spec variants.
How do I know if my amp valve is broken?
Unpleasant Noises.
Pops, crackles or squeals are three good indicators of valve problems. In fact, this is the first thing as a valve amplifier technician I will look at. There are many other causes of this fault but the first thing I do is to swap out the valves to eliminate those from the equation.
