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Maplins UK: The Leading UK Electronics Store - Maplins UK Electrical Store UK - LM337 3-Terminal Negative Adjustable Regulator ( Reg LM337T NSC ) An adjustable, 3-terminal, negative voltage regulator capable of supplying 1.5A over a range of 1 2V to 37V. It is exceptionally easy to use and requires only two external resistors to set the output voltage. Besides having a higher performance compared with fixed regulators, the LM337 offers full overload protection with current limiting, thermal overload protection and safe area protection. All overload protection circuitry remains fully functional even if the adjustment terminal is disconnected.The adjustment terminal can be bypassed with a capacitor to ground to achieve very high ripple rejection ratios that are difficult to achieve with standard 3-terminal regulators.Output voltage is set by connecting a twin resistor divider between output and circuit ground and connecting the adjustment pin to the junction. A precision current regulator can also be made by connecting a fixed resistor only between the adjustment and output pins, and connecting the load to the adjustment pin. The device is available in TO220 package (LM337T). LM337 3-Terminal Negative Adjustable Regulator ( Reg LM337T NSC ) LM337 3-Terminal Negative Adjustable Regulator ( Reg LM337T NSC ) Maplin, Maplins ... Indoor Dumm y CCTV Camera ( Indoor Dumm y Camera ) Indoor Dumm y CCTV Camera ( Indoor Dumm y Camera ) Maplin, Maplins ... Stereo Voice Recorder ICR-A190 ( ICR-A190 Voice Rec ) · Built-in128Mb memory· Built-in stereo microphone· Additional central microphone· Stereo MP3 voice recording· Stereo MP3 / WMA audio playback· Data storage· Backlit LCD display· Time date stamp· Voice activation· On-board editing· Adjustable playback speed control· Stereo microphone/headphone sockets· Comes complete with PC connection lead· Extended battery Life (up to 17 hours)· Requires 2 x AAA batteries (not supplied) Using an advanced built-in stereo microphone to produce high quality MP3 recordings, and a third central microphone for use in conference recording, ICR A190 is suitable for all recording situations. This handy device also has the ability to playback MP3 / WMA music and store data files directly from your computer.The ICR A190 can record over 17 hours in mono and over 7 hours in stereo. Connect the ICR A190 to your PC and transfer recordings to your PC for playback, storage or email. Files from your computer can also be transferred to the ICR A190, providing a portable storage solution for all your Word Documents, PowerPoint presentations, Excel Spreadsheets or any other data you need to take with you for use at your destination. Supported Operating Systems:Windows ME, 2000, XPDimensions:Height:117mm Width:29mm Depth:17mm Weight:57gms (including batteries)Recording TimeModeMono/Stereo17 hrs 30 minsLong PlayMono8 hrs 30 minsStandard PlayStereo4 hrs 20 minsHigh QualityStereo2 hrsExtra High QualityStereo ... C Alkaline Batteries ( Maplin C 2-Pack ) · Complete range of C alkaline batteries ... 10.8V 83Wh L/top Batt HP nc2400 ( HP L/Top Batt 6 ) 10.8V 83Wh L/top Batt HP nc2400 ( HP L/Top Batt 6 ) Maplin, Maplins ... DVD-RW 8cm 3-Pack ( 8CM DVD-RW 3 Pack ) · 8cm DVD-RW for use in digital camcorders· 4x recording speed · 1.4GB or 30 minutes of recording time ...