Types 26CB, -CC, -CG and CS


Types 26CB, -CC, -CG and CS
CCP Preamplifier Type 26CB
A ¼” preamplifier for use with prepolarised microphones such as those listed below. The 26CB is integrated with a Microdot connector and is delivered with a 3 m Microdot-BNC cable for direct connection to G.R.A.S. CCP1 input channels with a standard BNC socket, e.g. see Type 12AL. The built-in TEDS2 chip enables it to be programmed as a complete unit together with a microphone
The Type 26CB can be used with the following ¼" G.R.A.S. prepolarised microphones:
  • Type 40BE
  • Type 40BD
And with the following ½" G.R.A.S. prepolarised microphones using the included Adapter GR0010:
  • Type 40AE
  • Type 40AD
  • Type 40AO
  • Type 40AQ
CCP Preamplifier Type 26CC
Similar to the Type 26CB but with an integrated SMB connector which allows it to be used directly on G.R.A.S. Array Modules PR0001 and PR0002.
CCP Type 26CG, Infra-sound (for Microphone Type 40AZ)
The CCP1 Type 26CG has been designed for measurements at very low frequencies (infra-sound), below 1 Hz. It has a very wide bandwidth (from below 1 Hz to above 200 kHz) and a low inherent noise level, owing to the 40 GOhm input impedance, and is thus applicable for use at very low sound pressure levels. Used with ½" Free-field Microphone Type 40AZ, Infra-sound.
CCP Preamplifier Type 26CS
Type 26CS is a very small premaplifer. The 26CS is integrated with a Microdot connector and is delivered with a 3 m Microdot-BNC cable for direct connection to G.R.A.S. CCP1 input channels with a standard BNC socket, e.g. see Type 12AL.
Specifications Type 26CB, 26CC, 26CS
Specifications Types 26CB, 26CC, 26CS
Frequency range:
2 Hz - 200 kHz (±0.2 dB)
Input impedance:
0.4 pF, 20 G Ohm
Output impedance:
< 50 Ohm
Output connector:
Coaxial microdot (26CB)
Coaxial SMB (26CC)
Power supply:
2 mA to 20 mA (typically 4 mA)
Noise: A-weighted
 < 2.5 µV (typically 2 µV) rms
Noise: linear (20 Hz - 20 kHz)
< 6 µV (typically 3.5 µV) rms
Gain:
Types 26CB, 26CC: –0.25 dB (typical), Type 26CS: -0.45 dB (typical)
Operating temperature:
Types 26CC, CS: –30 °C to + 70 °C
Type 26CB: –30 °C to + 100 °C
Storage temperature:
Types 26CC, CS: –40 °C to + 85 °C
Type 26CB: –40 °C to + 120 °C
Dimensions and weight
Diameter: 6.35 mm (¼")
Length: Types 26CB, 26CC: 44.0 mm,  Type 26CS: 29.5 mm
Weight: Types 26CB, 26CC: 8 g,  Type 26CS: 3.5 g
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