Home            Oktava Modifications
 

The mod that we perform to the Oktava MK219 and MK319 is almost the same. The circuit and layout is very close and the same results are achieved.

  • Mod the Grill to a more open and transparent brass wire mesh. In the 219, I cut out the grates across the capsule.
  • Replace and bias the FET with a Neumann style fet.
  • Two resistors are replaced with 1 Gigaohm resistors
  • Replace the electrolytic capacitors with better capacitors.
  • Replace the transformer coupling capacitor with a better capacitor.
  • Retain the switches without adding capacitance ** (See citation below)
  • Isolate the capsule from the capsule mount.
  • Replace the wire with Mil. Spec.Teflon/ Silver coated stranded wire.
  • Coat the interior of the body with a rubber compound. (Better than Silicone)
  • Burn in the mic for three days and retest.

** mod inspired by Mark Fouxman, Samar Audio & Microphone Design

The MK012 is a wonderful mic that sounds great out of the box. With some changes the mic sounds amazing.  
  • Change two resistors out to 1 gigaohm resistors.
  • Change the capsule coupling capacitor.
  • Change select capacitors to improve frequency response and clarity.
  • Change the FET to a Neumann style FET used in the U87 mic.
  • Bias the FET to custom tune and optimize the performance of the microphone.

Click here for prices