The EH-TM from Electro-Harmonix is a bottle-style tube microphone capable of multiple patterns: cardioid, omni-directional, and figure eight. It features dual large, 1.5 micron thick gold sputtered diaphragms and the Russian 6C15P tube in its discrete preamplifier circuitry. A Class A power supply, designed and constructed in the United Kingdom, powers the tube. An extremely high-quality shockmount comes standard, along with a sturdy case.

Main Features:

• Bottle-style tube microphone
  
• Made in Russia
  
• Dual large diaphragm
  
• 1.5 micron gold sputtered diaphragms
  
• Russian 6C15P tube
  
• Discrete preamplifier circuitry
  
• Class A power supply
  
• Cardioid, omni, and figure eight patterns
  
• Includes high-quality shockmount and case

Specifications:

• Polar pattern: cardioid, omni-directional, figure eight
  
• Frequency response: 20Hz - 20kHz
  
• Sensitivity: 13mV/Pa
  
• Output impedance: 200 ohm nominal
  
• Maximum SPL @ 1kHz: 135dB
  
• Maximum output voltage: 1.2V
  
• Current consumption: 8mA