(Combo transformer + electronics).

If you decide to make a comprehensive change in your ribbon microphone, this activator is the  necessary both, transformer and electronics.

Toroidal transformer amorphous metal.

Hand winding like all our transformers.

Two isolation levels with independent ground, one for electronics and two Shields transformer box.

Electronics for dual topology class A current mirror with precision matched JFETs.

Very low noise.

Gain 30dB + transformation ratio.

Feed phanton 48V, less than 4 mliamperes consumption.

Outside diameter of 22 millimeters.