GRAS 42AA - Page 16

G.R.A.S. Sound & Vibration
Pistonphone Types 42AA/42AA-S1 - Page 16
Accessories included:
Adapter for ¼-inch microphones: RA0049
Adapter for ⅛-inch microphones: RA0069
Barometer: ZC0002K (type 12AA)
Barometer: RA0168 (type 12AA-S1)
Coupler for ½-inch microphones: RA0048
Four LR6-AA alkaline cells: EL0001
Accessories available:
Adapter for Outdoor Microphone System
1
:-
Type 41AM: RA0009
Type 41CN: RA0041
Adapter for Environmental Microphone
1
:-
Type 41AL: RA0010
Coupler for 1-inch microphones: RA0023
Two-port calibration coupler: RA0024 (see Fig. 4.1)
Octopus coupler (½-inch mics.): RA0072
1
Applies only to Pistonphones tted with a 1-inch microphone coupler RA0023
Fig. 4.1 Two-port Coupler RA0024 shown
here with the two phase-matched
microphones of an intensity probe