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The proposed device is a simple stereo tube preamplifier, digitally controlled using a microprocessor. The device resigned from traditional rotary potentiometers and used digital potentiometers, and in addition, tube tuning indicators used as VU-meters were used. Sequential control of switching anode voltage and glow voltage allows to extend the lifetime of the lamps in the preamplifier.
Tile dimensions:
Programmed layout.
Detailed description EdW 10/09
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Manufacturer AVT SPV Sp. z o.o. Leszczynowa 11 03-197 Warszawa Poland zamowienia@avt.pl
Responsible person AVT SPV Sp. z o.o. Leszczynowa 11 03-197 Warszawa Poland zamowienia@avt.pl
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Michalski Wojciech
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Andrzej Witkowski
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Universal metal keyboard by ACCORD, 12 buttons, numeric with blue LED backlight. PCB has a soldered 10-pin tinned straight connector, pitch 2.54mm WF10S KB304-MNS-WP-B
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