cyndicate
Well-known member
Anyone know the preamp tube layout? Is it fine to run all 12ax7 in it? Or is there supposed to be a specific slot where it takes only a 12at7?
cyndicate
Well-known member
anyone?
muudrock
Active member
You can run all 12ax7a's in there. Just use high quality tubes. I believe I run the good old Sovteks in there and they sound good and perform well.
From another post:
Left to Right, Top to Bottom, looking at the amp from behind:
Ch2 Pwr Tube1 >>>>>> Ch2 Pwr Tube2 >>>>>>> Ch1 Pwr Tube1>>>>>>>>>Ch1 Pwr Tube2
Ch2 Phase Inverter >>>>>>>> Input driver/buffer (both) >>>>>>>>> Ch1 Phase Inverter
From another post:
Left to Right, Top to Bottom, looking at the amp from behind:
Ch2 Pwr Tube1 >>>>>> Ch2 Pwr Tube2 >>>>>>> Ch1 Pwr Tube1>>>>>>>>>Ch1 Pwr Tube2
Ch2 Phase Inverter >>>>>>>> Input driver/buffer (both) >>>>>>>>> Ch1 Phase Inverter
cyndicate
Well-known member
muudrock":39hok2u9 said:
Cool thanks! I guess I have to figure out which preamp tube is crapping out on me.
muudrock
Active member
cyndicate":2fqvji2d said:muudrock":2fqvji2d said:
Cool thanks! I guess I have to figure out which preamp tube is crapping out on me.
Whats it doing? It would be odd to have one of the PI or input driver tubes fail, although not improbable.
cyndicate
Well-known member
muudrock":3jel6g4j said:cyndicate":3jel6g4j said:muudrock":3jel6g4j said:
Cool thanks! I guess I have to figure out which preamp tube is crapping out on me.
Whats it doing? It would be odd to have one of the PI or input driver tubes fail, although not improbable.
When I switch it off of standby to the play position, the far right preamp tube starts "sparkling" and making crackling noises a bit for about 10 seconds. No clue what is causing it. Was hoping to sell it too, but I have to get it fixed before I can.
cyndicate
Well-known member
Ok so I took the cover off, it looks like A19 on the board is sparking and it isn't the tube... anyone know what that resistor does or what is causing it?