▷ 1/2" PREAMPLIFIERS

     <Type 26AH, 26AJ, 26AK, 26AM, 26AG>
    Frequency range : 2 Hz- 200 kHz (±0.2 dB)
    Input impedance : 20 GΩ, 0.2 pF
   Output impedance : 55 Ω(typical)
   Power Supply : 120 V 2.5 mA down to 28 V 0.7 mA
   Noise (with 1/2" microphone) :
          A-weighted: <2.5 μV rms (typical: 1.8 μV rms)
     Linear (20 Hz-20 kHz) : <6 μV rms
    Gain : -0.15 dB (typical)
   Temperature : Operation: -40°C-+60°C  /   Storage: -40°C-+70°C
 

  ▷ 1/4" PREAMPLIFIERS

   <Type 26AA, 26AC, 26CA and 26AL>
   Frequency range :  26AA, 26AC, 26CA and 26AL
    Input impedance: 20 GΩ, 0.2 pF
    Output impedance: 55 Ω(typical)
    Power Supply: 120 V 2.5 mA down to 28 V 0.7 mA
    Noise (with 1/2" microphone):
                 A-weighted: <2.5 μV rms (typical: 1.8 μV rms)
    Linear (20 Hz-20 kHz): <6 μV rms
    Gain: -0.25 dB (typical)
    Temperature: Operation: -40°C-+60°C  /  Storage: -40°C-+70°C