WK20

20W Power Amplifier Board

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Item Number: 1000614100

Dernière modification

13.09.2018

English

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Description

Designed to amplify the audio of an ASLT subscriber line
Used standalone (speaker only), or in combination with a station to amplify the speaker signal
Connects directly to the subscriber line
Provides 20W into 4 Ohm or 6W into 20 Ohm
Powered by 24V AC or 24-36V DC

The amplifier 1000614100 is designed to amplify the audio from a Vingtor-Stentofon AlphaCom subscriber line. The amplifier can be used standalone (loudspeaker only), or it can be used in combination with a station to amplify the loudspeaker signal.

The board contains a power amplifier, a potentiometer for adjusting the output volume and an input for switching the amplifier on/off. The symetrical input is matched to the output level on the ASLT subscriber board in the AlphaCom exchange.

The amplifier may be constantly on, or switched on and off by the M-key on the calling station. It is recommended that power to the amplifier board is supplied from a separate class II transformer.

In the AlphaCom exchange, brackets must be mounted on the board, in order to fasten to the mounting rail.

The potentiometer "Balance" is to balance out hum and noise, and is preset from factory. Further adjustments are normally not neccessary.

Spécifications


General
Input signal level	1V - 10V
Input impedance	6 kOhm
Output power	20W into 4ohm, 12W into 8 ohm, 6W into 20 ohm
Frequency range	140 - 20.000 Hz
Max. amplification	10.5 dB
Recommended room temperature	0’C to +35’C / +32’F to + 95’F
Humidity Range (non-condensing)	10% - 90% RH
Dimensions W x H x D	75 mm x 84 mm x 40 mm / 2.9” x 3.3” x 1.6”


ORDER NUMBER	DESCRIPTION	SHIP WEIGHT
1000614100	WK20 Power Amplifier Board	0.2 kg

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WK20

Dernière modification