Marshall Valvestate AVT50 Head… dead…

DSC_8507Power socket haning out.. no eath connected..Power socket haning out.. no eath connected..Oops power socket haning off, and back panel missingOops power socket haning off, and back panel missingReverb tank in top of cabReverb tank in top of cabQuite neat single layer PCBQuite neat single layer PCBLook there is one loney tube in there! all tested goodLook there is one loney tube in there! all tested goodDSC_8515Repaired socketRepaired socketOutput stage.... dead... short circuitOutput stage…. dead… short circuitPower amp removedPower amp removedBoard clamped ready to unsolder the amp chipBoard clamped ready to unsolder the amp chipNew chip soldered in and ready to test!  She worked!New chip soldered in and ready to test! She worked!All running well on the bench now!All running well on the bench now! Tatty Marshall AVT50 in for a fix.. dead… power amp shorted was main issue.. common problem with these amps… heat sinking minimal.. all fixed and sounding very “Marshally”

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