What are your thoughts on pencil lead graphite resistors? I read that audiophiles will upgrade resistors to pencil lead on sound systems to improve quality / reduce noise. Would a pencil lead replacement of the output side 100ohm resistor (in the final diagram) help anything or would the improvement be negligible? Thanks for the great article.
I can't see what would be the point. Based on a Google search, looks like the main claim is that they're "non-inductive". I guess they can have lower inductance than wirewound resistors, but first, the inductance of speaker wires and coils is likely much higher than what you're adding or removing here; and second, you don't need to use wirewound resistors to begin with? Carbon composition resistors should be pretty much the same as pencil leads.
Further, unless you have a really good way to bond copper leads to graphite, I think there's a good chance of the resistor behaving erratically, especially in audio equipment. Vibration and all that...
Thanks for the reply. I read this on the web a while back (about the pencil lead resister), can't remember the source. My initial guess was that it would not work, be practicle, or improve sound in a microphone.. So thanks for the added info. I guess your designed mic might look cool in a clear box with homemade pencil lead resistors and vacume tube transistors, even if not an improvement in sound. Bulky, impractical, time consuming, and more expensive, but cool looking.
Greetings! I wish to kindly ask for your help about some component-codes for the jack connector, that you used on this project, also for the on/off switch, I try to replicate your design , I cannot find a way to hear my voice better, when singing at home, without complicating things for no reason.. And finally - can you please advice, how can I add a volume potentiometer, like - replacing the feedback resistor in the first opamp stage, or directly to the output..? Thank you for your generosity to share this project
By the way, the demo song is "All The Magic" by Karliene: https://karliene.com/track/2083873/all-the-magic
What are your thoughts on pencil lead graphite resistors? I read that audiophiles will upgrade resistors to pencil lead on sound systems to improve quality / reduce noise. Would a pencil lead replacement of the output side 100ohm resistor (in the final diagram) help anything or would the improvement be negligible? Thanks for the great article.
I can't see what would be the point. Based on a Google search, looks like the main claim is that they're "non-inductive". I guess they can have lower inductance than wirewound resistors, but first, the inductance of speaker wires and coils is likely much higher than what you're adding or removing here; and second, you don't need to use wirewound resistors to begin with? Carbon composition resistors should be pretty much the same as pencil leads.
Further, unless you have a really good way to bond copper leads to graphite, I think there's a good chance of the resistor behaving erratically, especially in audio equipment. Vibration and all that...
Thanks for the reply. I read this on the web a while back (about the pencil lead resister), can't remember the source. My initial guess was that it would not work, be practicle, or improve sound in a microphone.. So thanks for the added info. I guess your designed mic might look cool in a clear box with homemade pencil lead resistors and vacume tube transistors, even if not an improvement in sound. Bulky, impractical, time consuming, and more expensive, but cool looking.
Greetings! I wish to kindly ask for your help about some component-codes for the jack connector, that you used on this project, also for the on/off switch, I try to replicate your design , I cannot find a way to hear my voice better, when singing at home, without complicating things for no reason.. And finally - can you please advice, how can I add a volume potentiometer, like - replacing the feedback resistor in the first opamp stage, or directly to the output..? Thank you for your generosity to share this project