Electro-Voice 625SKK Data Sheet

ENGINEERING DATA a
DESCRIPTION AND APPLICATIONS
The model 6255KK handset is a differential, close Net Weight: 1 Ib, 5 0z., including cable E
talking type microphone designed for use where Cable: 5-conductor coiled cord, unshielded, ex- Ca
background noise is at a high level, Sound energy tends to 6 feet =
arriving from a distance enters the microphone On- Off Switch: Press-to-talk (nonshorting type) on 3
case through two apertures and the resulting phase microphone circuit and relay switch о
relationship causes attenuationof the sound. Speech m
which originates close to the microphone enters WARRANTY Fr
only one aperture and is fully reproduced. Artic- The Electro-Voice Model 625SKK Microphone is o
ulation is 97% under quiet conditions and 88% under quaranteed against defects in workmanship and N ;
115 db of ambient noise. materials. 0
Wn
The model 625SKK meets the most rigid require- A
ments of industrial paging, intercom and commu- REC, A
nication service. A rugged, shock-resistant bake-
lite case makes the model 625SKK ideal for mobile
applications. A coiled cord is provided for maxi- O >
mum convenience in operation, cable and switch O
are of highest quality for utmost reliability. ©
SPECIFICATIONS ie -
Type: Dynamic ie
Frequency Response: 100 to 5000 cps : 3
Impedance: Microphone - 250 ohms, Receiver -
150 ohms
Output Level: -55db (0 db - 1 mw/10 dynes/em”) В a
EIA sensitivity rating, -147 db $ Е © Z SZ
Polar Pattern: Bidirectional, pressure gradient N Sa
Case: Medium impact phenolic Y У |
Finish: Molded black
Dimensions: Length, 8-1/2 in., Width, 2-5/8 in. ,
Depth, 3 inches Figure 1-Wiring Diagram
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LG EU
10-65
Litho in U.S.A. E) ELECTRO-VOICE, INC. / Buchanan, Michigan Part No, 53294