Thursday, November 22, 2012

NAGRA TRVR Tape Recorder

NAGRA TRVR Tape Recorder Video Clips. Duration : 2.65 Mins.


First introduced in 1979, the TRVR is a two track analogue long duration recorder designed for logging purposes.(but it works perfectly on Hi-FI musical recording) It is designed to be mounted in standard 19" rack units. With 4 different tape speeds ranging from 7.5ips to 15/16ips it fits a variety of long duration recording applications. It operates in a vertical position and runs using a pinchwheel-free drive system. It incorporates the facility to automatically start a susequent recorder when the tape comes to an end allowing the first truely automated play-out systems for Radio broadcasters. Also very popular for logging of telephone lines in the security industry, where several TRVR recorders were mounted in parallel to monitor multiple telephone lines symultaneously. Also polular for dialogue recording for air traffic controllers in airports all over the world. Bandwith: From 30 to 17000Hz at 7 1/2ips Two meters give the following indications: - input and output signal level (dB) - time code input or output signal level (dB) - difference between recorded and playback signal - HF bias level (for bias adjustment) - Remaining tape quantity on supply spool (%) - Choosen DC start level and effective DC input level (V) Speed accuracy : better than 0.1% Start time : : less than 0.1sec at all speeds Operating temp. -20 to +70°C

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