Hi Petter.Glad to hear from you.
I think I remembered an old rule for tubes that the 1 was first left view from bottom.Don't know if it makes clear or not, but...I am not so tubed
I think you could see the filaments at the center of the tube,should be 4 5 with 6.3V
Sometimes the common is not specified to inside tube for a 12V operation
OUUUPPSS !
😛irate:
Hope you won't burn anything....
I think I remembered an old rule for tubes that the 1 was first left view from bottom.Don't know if it makes clear or not, but...I am not so tubed

I think you could see the filaments at the center of the tube,should be 4 5 with 6.3V
Sometimes the common is not specified to inside tube for a 12V operation
OUUUPPSS !


Hope you won't burn anything....
12ax7
Check continuity across 3 and 4.
I think you are looking down from top of tube therefore top view.
Rick
Check continuity across 3 and 4.
I think you are looking down from top of tube therefore top view.
Rick
Count clockwise when you're soldering it. That does it for me 🙂
The diagram you drew in your post is wrong. Looking from underneath, it is the opposite.
The diagram you drew in your post is wrong. Looking from underneath, it is the opposite.
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- Is this top of bottom view of 12AX7 / 6N30P?