Very rough but I guessed fleshed out a bit it could look something like this? RV1 = input level, RV2 = Bias control.
View attachment 107925
This is definitely way off topic of the original thread. I think if you really want to create a tube mic pre it would be best to start a new thread.
Sam,
You need to learn more basic electronics. I do not now have the time to teach you.
No, the best way to learn is to actually build ****.
People around here are very willing to help you build existing projects without being judgemental. Having said that, you should not expect to be spoon fed. DIY does mean acquiring certain skills and as soon as you go off piste so to speak and start wanting to develop your own designs then there are additional technical skills you need to acquire and you should make the effort to acquire them. There are ample recommended resources already posted here that you can investigate and find the one that best suits your abilities and preferred way of learning.I think it’s so much easier to learn by asking loads of questions (and try not to worry too much that it might annoy some people, sorry ) and actually doing things. I don’t know anyone in real life who’s brains I can pick which is why I’ve resorted to drawing dodgy schematics and hoping some nice people on the internet will tell me what I’m doing wrong.
Cheers,
Sam
when you get that sorted can you please let me know?The hard part is having a deep understanding of what’s going on and how all the different parts interact with each other.
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