½-inch CCP Preamplifier with gain and filters - Type 26CF

The G.R.A.S. ½-inch Preamplifier Type 26CF is for connection to G.R.A.S. CCP¹ input channels, e.g. see Type 12AL. It has a standard BNC output connector and is for use with prepolarised microphones. It is delivered without a cable.

It also has two flush-mounted switches for selecting various combinations of gain and filtering, i.e.:

Gain switch settings:

• 0dB - for normal microphone signals.
• +20dB - for boosting weak microphone signals.

Filter switch settings:

• A-Weighting - as required in standard measurements.
• Linear - to let the microphone signal pass unfiltered.
• High-pass - to cut off unwanted low frequencies

The Type 26CF can be used with the following ½" G.R.A.S. prepolarised microphones:

• Type 40AE
• Type 40AD
• Type 40AO
• Type 40AQ

And with the following ¼" G.R.A.S. prepolarised microphones using the Adapter RA0019:

• Type 40BE
• Type 40BD

Download PDF Data Sheet: pd_26CF_ver_28_06_06.PDF

¹ Constant Current Power

Related Products:

Type 26A+ Series & Type 26TK
Type 26CA

Adobe Acrobat reader is required for viewing data sheets.

2.5 Hz - 200 kHz (±0.2 dB)

0.4 pF, 20 G Ohm

< 50 Ohm

Coaxial BNC

4 mA to 20 mA (typically 4 mA)

Typically 10 µV (built-in A-weighted) rms

Typically 8 µV rms

–0.25 dB (typical)

–30 °C to + 70 °C

–40 °C to + 85 °C

diameter: 12.7 mm (½")
length: 92 mm
weight: 30 g