Markyman
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- Feb 27, 2020
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Hi folks
Newbie on here from Old Blighty.
Apologies in advance if this topic has already been covered and put to bed; I did look, for ages, and found a few posts that were close but not exactly matching my issue.
My V is a 2013 model and I have owned it since new (Combo in hardwood). It has been fine for years, then over the last few months, it would ‘click’ and sound like someone had power cycled it. The fan would stop (for less than a second) and start up again, then everything returned to normal. This was regardless of what channel I was playing through.
A week or so ago, it clicked and then didn’t start up again. Panic! Observations: no panel lights on, but power tubes all glowing as normal, slight hiss from the speaker. Switching channels made no difference.
I checked every valve (sorry, tube) and they all passed as fine (Orange VT-100 and Senicore tester). I have checked the tubes twice now with the same result. The only minor niggle was one of the 6L6s had a tiny bit less gain than the other three.
I popped the chassis out and looked for any smoke in there, everything was normal looking. Tapping all the components with a wooden chopstick revealed nothing.
Then after three days of head scratching, it suddenly started working again! No dropouts, until of course I thought it was ‘cured’ after spraying contact cleaner everywhere and put it all back together, only to have it cut out again as before. Gutted.
So, I’m really hoping that one of you experienced Mesa men can suggest what might be the cause. I seem to remember the effects loop stopped working before the final death throes.
I don’t know if we have any Mesa techs in the South of England either; still asking everyone I can think of.
I have built a Cage amp from a kit and that still works beautifully, so I am not too clumsy with a soldering iron, but I think I may have met my match with this amp. :|
Newbie on here from Old Blighty.
Apologies in advance if this topic has already been covered and put to bed; I did look, for ages, and found a few posts that were close but not exactly matching my issue.
My V is a 2013 model and I have owned it since new (Combo in hardwood). It has been fine for years, then over the last few months, it would ‘click’ and sound like someone had power cycled it. The fan would stop (for less than a second) and start up again, then everything returned to normal. This was regardless of what channel I was playing through.
A week or so ago, it clicked and then didn’t start up again. Panic! Observations: no panel lights on, but power tubes all glowing as normal, slight hiss from the speaker. Switching channels made no difference.
I checked every valve (sorry, tube) and they all passed as fine (Orange VT-100 and Senicore tester). I have checked the tubes twice now with the same result. The only minor niggle was one of the 6L6s had a tiny bit less gain than the other three.
I popped the chassis out and looked for any smoke in there, everything was normal looking. Tapping all the components with a wooden chopstick revealed nothing.
Then after three days of head scratching, it suddenly started working again! No dropouts, until of course I thought it was ‘cured’ after spraying contact cleaner everywhere and put it all back together, only to have it cut out again as before. Gutted.
So, I’m really hoping that one of you experienced Mesa men can suggest what might be the cause. I seem to remember the effects loop stopped working before the final death throes.
I don’t know if we have any Mesa techs in the South of England either; still asking everyone I can think of.
I have built a Cage amp from a kit and that still works beautifully, so I am not too clumsy with a soldering iron, but I think I may have met my match with this amp. :|
