Hi
I copied this circuit for the DI output section for another Fender amp.
The DI transformer is on the top right corner of the page of page 6.
My question is how do I determine the right capacitor value on the input prim of the transformer. In the attached schematic they used a 0,1uF.
When I connect the cap with my chosen transformer, an OEP A262A3E, I get a slight boost of the higher frequencies.
The cap is likely resonating with the primary inductance. Make it smaller, and the resonance will shift to higher frequency, likely above what you can hear...
The cap is likely resonating with the primary inductance. Make it smaller, and the resonance will shift to higher frequency, likely above what you can hear...
Since he is complaining about a "boost", there is no way that a "low-pass filter" can do that... If you make the shunt cap lower, it is likely to move the resonance lower into the mid band.