Vildhjuggah
Member
I saw the capacitor type post in general and decided to check if i ordered the right types the other night for the muzzle noise gate and some of them are wrong according to it. I did a little research on caps and the schematic as well.
So I'm wondering as some pre troubleshooting is it worth going ahead and ordering the correct types? I'm also asking this as a learning opportunity to see an example of how they could change the circuit.
Wrong ones:
1; I ordered 0.01uF 50V Ceramic Disc Capacitor, 0.1uF 50V Ceramic Disc Capacitor, 0.15uF 50V Ceramic Disc Capacitor and I should've used film.
It seems ceramic react less linearly to voltage and they are microphonic.
2; I ordered 150pF 50V Ceramic Disc Capacitor but I should've used silver mica or mlcc.
Normal ceramic vs mlcc isn't much of a difference though silver mica have tighter tolerances and have no air gaps (so less microphonic?)
3; I ordered, 2.2uF 50V Multilayer Monolithic Ceramic Capacitor and I should've use tantalum electrolytic.
Tantalum has better frequency response though in power situations mlcc are still good and sometimes better.
It seems the .1uf (100nf) are in part of the power circuit, the 150 pf are in the opamp circuit (gain stages?), the .01 uf (10nf) is in the power circuit for the that4301 as well as the .15uf (150nf).
So theoretically it will have more line noise from the ceramic instead of film box for .1uf .15uf and .01 uf. Maybe some from the cermaic instead of multilayer ceramic (150pf) but not much. I'm not sure how the 2.2uf will effect things but I see its in some sort of transistor stage to ground after one of the op amp stages connected to the high or low switch so I suppose it could change how much it clamps.
Am I right about how it would affect the circuit? Is it worth ordering more to replace these or in this circuit is it negligible?
So I'm wondering as some pre troubleshooting is it worth going ahead and ordering the correct types? I'm also asking this as a learning opportunity to see an example of how they could change the circuit.
Wrong ones:
1; I ordered 0.01uF 50V Ceramic Disc Capacitor, 0.1uF 50V Ceramic Disc Capacitor, 0.15uF 50V Ceramic Disc Capacitor and I should've used film.
It seems ceramic react less linearly to voltage and they are microphonic.
2; I ordered 150pF 50V Ceramic Disc Capacitor but I should've used silver mica or mlcc.
Normal ceramic vs mlcc isn't much of a difference though silver mica have tighter tolerances and have no air gaps (so less microphonic?)
3; I ordered, 2.2uF 50V Multilayer Monolithic Ceramic Capacitor and I should've use tantalum electrolytic.
Tantalum has better frequency response though in power situations mlcc are still good and sometimes better.
It seems the .1uf (100nf) are in part of the power circuit, the 150 pf are in the opamp circuit (gain stages?), the .01 uf (10nf) is in the power circuit for the that4301 as well as the .15uf (150nf).
So theoretically it will have more line noise from the ceramic instead of film box for .1uf .15uf and .01 uf. Maybe some from the cermaic instead of multilayer ceramic (150pf) but not much. I'm not sure how the 2.2uf will effect things but I see its in some sort of transistor stage to ground after one of the op amp stages connected to the high or low switch so I suppose it could change how much it clamps.
Am I right about how it would affect the circuit? Is it worth ordering more to replace these or in this circuit is it negligible?