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Hello all,
I once again am turning to your infinite wisdom for guidance. I recently purchased a Marshall SLP 100 mid-conversion to PTP board and transformer swap. When I received the amp it had several errors in wiring and after a few days of frustration/ pots of coffee I believe I have been able to remedy that situation. The problem is I still have no output on the amp. Voltages as shown below check out what I believe to be fine but when I turn the amp on attached to a load there is no output what so ever. Not even any internal noise noise/ hum. Any ideas where to start looking? Marshall SLP 1959 PTP conversion, with Heyboer output transformer and Classic Tone power transformer Voltages were taken with all tubes in place:
V1:
1)152 2)0 3)1 4)2.7AC 5)2.7AC 6)207 7)0 8)1.8 9)2.7AC
V2:
1)159 2)0 3)1 4)2.7AC 5)2.7AC 6)282 7)158 8)159 9)2.7AC
V3:
1)212 2)22 3)37 4)2.7AC 5)2.7AC 6)216 7)23 8)37 9)2.7AC
V4:
1)0 2)3.15AC 3)460 4)465 5)-38 6)472 7)3.15AC 8)0
V5:
1)0 2)3.15AC 3)476 4)480 5)-38 6)476 7)3.15AC 8)0
V6:
1)0 2)3.15AC 3)476 4)465 5)-38 6)473 7)3.15AC 8)0
V7:
1)0 2)3.15AC 3)475 4)467 5)-38 6)473 7)3.15AC 8)0
I can post some pictures of the board and components as well if that would help. Any suggestions would be great as I am totally stuck. Thanks guys!!
I once again am turning to your infinite wisdom for guidance. I recently purchased a Marshall SLP 100 mid-conversion to PTP board and transformer swap. When I received the amp it had several errors in wiring and after a few days of frustration/ pots of coffee I believe I have been able to remedy that situation. The problem is I still have no output on the amp. Voltages as shown below check out what I believe to be fine but when I turn the amp on attached to a load there is no output what so ever. Not even any internal noise noise/ hum. Any ideas where to start looking? Marshall SLP 1959 PTP conversion, with Heyboer output transformer and Classic Tone power transformer Voltages were taken with all tubes in place:
V1:
1)152 2)0 3)1 4)2.7AC 5)2.7AC 6)207 7)0 8)1.8 9)2.7AC
V2:
1)159 2)0 3)1 4)2.7AC 5)2.7AC 6)282 7)158 8)159 9)2.7AC
V3:
1)212 2)22 3)37 4)2.7AC 5)2.7AC 6)216 7)23 8)37 9)2.7AC
V4:
1)0 2)3.15AC 3)460 4)465 5)-38 6)472 7)3.15AC 8)0
V5:
1)0 2)3.15AC 3)476 4)480 5)-38 6)476 7)3.15AC 8)0
V6:
1)0 2)3.15AC 3)476 4)465 5)-38 6)473 7)3.15AC 8)0
V7:
1)0 2)3.15AC 3)475 4)467 5)-38 6)473 7)3.15AC 8)0
I can post some pictures of the board and components as well if that would help. Any suggestions would be great as I am totally stuck. Thanks guys!!
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