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#1
Posted to rec.audio.tubes
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Tube amp trouble
hi,
I got a mesa/boogie mark IV head and no sound is getting out off it. History : - this amp have sound lost some time ( sound volume drop ) - i change the power tube -- problem not solve - one day, no more sound, speaker cab and cable are ok - i can hear sound (when i play guitar) going out from the output tube but it dont goes true speaker ???? is my power transformer may be the trouble ? i need your advice p.s. : sorry for my english but it's not my native language |
#2
Posted to rec.audio.tubes
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Tube amp trouble
did you check the HT and screen supplies
if ok check for open resistors. check the output transformer for open circuit wineding. wrote in message ups.com... hi, I got a mesa/boogie mark IV head and no sound is getting out off it. History : - this amp have sound lost some time ( sound volume drop ) - i change the power tube -- problem not solve - one day, no more sound, speaker cab and cable are ok - i can hear sound (when i play guitar) going out from the output tube but it dont goes true speaker ???? is my power transformer may be the trouble ? i need your advice p.s. : sorry for my english but it's not my native language |
#3
Posted to rec.audio.tubes
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Tube amp trouble
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