BRUEL & KJAER 4217 Instructions And Applications

Hearing Aid Test Box Type 4217
An easily operated chamber for reproducible
testing of all types of hearing aids in the fre -
quency range 250- 5ooo Hz.
Allows quick after repair checks, production tests,
acceptance tests etc.
BRUEL& IK'-'AC.A
NA:.RUM, DENMARK. Teleph. : 80 05 00. Cable: BRUKJA. Telex: 5316. COPENHAGEN
BB 4217 - 0300063