It's documented in the phantom version or normal. It only works in the mic input, and it has a lot of white noise. Any ideas what could be wrong?
I calculated the current in the collector to be 0.7mA
(I fixed the disconnected joint pointed by the arrow)
EDIT: Apparently it was miswiring
I calculated the current in the collector to be 0.7mA
(I fixed the disconnected joint pointed by the arrow)
EDIT: Apparently it was miswiring
Last edited:
Hello Lamir,
you have posted pictures of what seem to be two different amplifiers. We don't know which one is which by your pictures and even if we did, your pictures do not show your wiring well enough that we can see what is connected where.
My guess could be "with wiring/soldering like in the second picture, it sin't surprising that you have problems with noise". What I mean to say, more politely, is you can't expect to have a circuit without noise when all the leads are close to each other, nearly touching themselves.
Secondly, did you make a wiring mistake?
you have posted pictures of what seem to be two different amplifiers. We don't know which one is which by your pictures and even if we did, your pictures do not show your wiring well enough that we can see what is connected where.
My guess could be "with wiring/soldering like in the second picture, it sin't surprising that you have problems with noise". What I mean to say, more politely, is you can't expect to have a circuit without noise when all the leads are close to each other, nearly touching themselves.
Secondly, did you make a wiring mistake?
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