capnspoony
Well-known member
hi helpers,
this is my first time building not from specific directions and i'm looking for a good way to add a "good" balanced input/output stage using op amps...
http://www.ethanwiner.com/spect-3.jpg
I was looking at the calrec shemo on the gyraf page for help but I get confused with what is exactly necessary for the input stage and output stage
If i were to cascade this design to make a 3 band eq would i need the 150R resistor on the output or is that simply there for a buffer? do i need a buffer stage between stages to a parametric eq? and what purpose does the first opamp serve in this circuit im confused as to what the 100K log pot by the "input" does.
I just graduated college and am just getting started in electronics.. so far its been a headache .. but in a good way .. any help would be appreciated ..
best,
-richie
this is my first time building not from specific directions and i'm looking for a good way to add a "good" balanced input/output stage using op amps...
http://www.ethanwiner.com/spect-3.jpg
I was looking at the calrec shemo on the gyraf page for help but I get confused with what is exactly necessary for the input stage and output stage
If i were to cascade this design to make a 3 band eq would i need the 150R resistor on the output or is that simply there for a buffer? do i need a buffer stage between stages to a parametric eq? and what purpose does the first opamp serve in this circuit im confused as to what the 100K log pot by the "input" does.
I just graduated college and am just getting started in electronics.. so far its been a headache .. but in a good way .. any help would be appreciated ..
best,
-richie