35
½” Externally Polarized and Prepolarized G.R.A.S. Microphones
All the items you need for level and frequency calibration of an ½” G.R.A.S. microphone
are shown on this page.
Level Calibration
26AG ½” Preamplifier, insert volt-
age (26AN ¼” Preamplifier, insert
voltage can be used with G.R.A.S.
½” microphones, as shown)
½” microphone (DUT)
42AP Pistonphone
AL0017 Calibration Stand
Frequency Calibration
RA0014 Electrostatic Actuator
AL0010 Calibration Stand
½” microphone (DUT)
26AB ¼” preamplifier with
integrated LEMO connector and
AF0008 ¼” to ½” Adapter - for
G.R.A.S microphones only. A 26AK
½” preamplifier can also be used.
G.R.A.S.
Pistonphone
G.R.A.S.
R
A 0 014
G.R.A.S.
Type xxxx
G.R.A.S.
Type xxxx