B+K Precision BK Precision Power Supplies Models 1689 and 1690 Regulated 28 A DC Power Supply c Overload Protection c High RFI Stability c Variable Speed Cooling Fan Model 1651A Compact Triple Output DC Power Supply Models 1686/1688 High Current DC Power Supplies c Multiple DC Output Terminals c 1 VDC to 15 VDC Variable Output c 28 A Output at 13.5 VDC The new B&K Precision Regulated 28 A DC Power Supplies 1689 and 1690 offer multiple DC output terminals; two pairs of 3 A, snap-in DC connectors are easily accessible on the front panel, and a pair of 28 A screw-on DC output terminals are located on the rear panel. Both models provide their maximum current output continuously hour after hour without thermal drifting. They are ideal car battery substitutions for servicing or demonstrating high power car stereo, cellular phone products, or even ham radio. 731-1689. 1689 ...............................................................................EACH 275.00 731-1690. 1690 ...............................................................................EACH 349.00 Model 1760 Triple Output DC Power Supply c Two 0-30 VDC, 0-2 A Section Capable of Independent, Series or Parallel Operation c One 4-6.5 VDC, 5 A Section c Switchable Series/Parallel Operation N 30 V Sections c Adjustable Current Limit Controls N 30 V Sections c Unique Variable Tracking, B Track A at 5% to 100% c Two 3-Digit LED Displays N One Reads Volts or Amps of OBO Supply N One Reads Volts or Amps of OAO Supply or 4 V-6.5 V Supply c Two Year Warranty 731-1760. Model 1760 ....................................................................EACH 650.00 Two 0 to 24 VDC Outputs (0.5 A) One Fixed 5 V Output (4 A) Independent or Tracking Operation Adjustable Current Limiting Designed to Operate Continuously at Rated Output Short Circuit Protection, Overload Protection, Reverse Polarity Protection Connect Outputs in Series for Higher Voltage Output or In Parallel for Higher Current Output (Switch Selectable) c One Year Warranty c c c c c c c 731-1652. Model 1651A ..................................................................EACH 435.00 c One Variable 0-30 VDC, 0-2.5 A Section, Constant Voltage/ Constant Current c One Fixed 12 VDC, 0.5 A Section c One Fixed 5 VDC, 0.5 A Section c Three Digit LCD Display c Ideal for General Electronic Servicing, School Electronics Labs, and Powering Up Electronic Project c One Year Warranty 731-1670. Model 1670 ....................................................................EACH 199.00 c Three Models: 1785 N 0-18 V/5 A; 1786 N 0-30 V/3 A; 1787 N 0-60 V/1.5 A c Nine User-Programmable Preset Outputs c Ten Step User-Programmable Output Routine c Excellent Regulation and Low Noise c In-Case Calibration c Serial Interface Cable and Software Included 731-1688. Model 1688 ....................................................................EACH 299.00 731-1686. Model 1686 ....................................................................EACH 199.00 c c c c c c c c 13.8 VDC Output (Fixed) 6 A DC Peak, 4 A DC Continuous (Model 1680) 15 A DC Peak, 12 A DC Continuous (Model 1682) Current Foldback, Overload Protection Short Circuit, Reverse Polarity Protection Thermostatically Controlled Cooling Fan (Model 1682) Convenient Cigarette Lighter Plug (Model 1680) Input: 110-132 VAC, 60 Hz 731-1680. Model 1680 ....................................................................EACH 50.00 731-1682. Model 1682 ....................................................................EACH 100.00 Power Supply Hook-Up Leads 731-1785. Model 1785.............................................................................................................................................................................................................. EACH 375.00 731-1786. Model 1786.............................................................................................................................................................................................................. EACH 375.00 731-1787. Model 1787.............................................................................................................................................................................................................. EACH 375.00 DC Power Supplies Model Output Voltage Output Current 731-0501. Model TL-5A ...................................................................EACH 9.09 731-0601. Model TL-30 ...................................................................EACH 12.50 1710 1711 1715 1730 1735 1740 1743 1746 0-30 V 0-1 A 0-60 V 0-2 A 0-60 V 0-2 A 0-30 V 0-3 A 0-30 V 0-3 A 0-60 V 0-4 A 0-35 V 0-6 A 0-16 V 0-10 A 0.01% +3 mV 0.01% +3 mV 100 s 3 mV rms 300 ppm/C Constant Current Operation Adjustable Current Range Current Regulation Line (10%) Load Current Ripple 5% to 100% 5% to 100% 0.2% +3 mA 0.2% +3 mA 3 mA 0.4% +5 mA 0.4% +5 mA 3 mA Voltmeter Accuracy c Fully Overload Protected c Reliable, Durable c New Compact Style c Excellent Regulation c Coarse and Fine Voltage c Very Low Ripple c 2 Year Warranty Controls c Operate Continuously at Full Load without Overheating c Constant Voltage or Constant Current Operation c Continuously Monitor Voltage and Current Output on Two Meters c Biggest Selection of Voltage and Current Ratings Ever Offered c Connect Two Supplies in Parallel to Double the Current Output c Connect Two Supplies in Series to Double the Voltage Output c Overload Protection: Current, Limiting, Reverse Polarity, Overvoltage, Short Circuit c Power Requirements: 120 VAC 10%, 60 Hz Only (120/220/230/240 VAC 10%, 50/60 Hz Version Available c Operating Temperature: 0 to 40C, <75% R.H. c Storage Temperature: 15 to +70C, <85% R.H. c TL-5 Up to 5 Amps N Banana Plugs to Alligator Clip N Red and Black c TL-30 Up to 30 Amps N Spade Lug to Clip N Red and Black Constant Voltage Operation Voltage Regulation Line (10%) Load (no load-full load) Recovery Time Ripple and Noise Temperature Coefficient Metering Type Voltmeter Range 682 b ALLIED 3 to 14 Volts DC Output 25 Amps Typical at 13.8 V, Model 1688 12 Amps Typical at 13.8 V, Model 1686 Current Limiting Overload Protection Over Voltage Protection Short Circuit Protection Reverse Polarity Protection Thermostatically Controlled Cooling Fan Thermal Protection (Model 1688) Operates Continuously at Full Load Without Overheating Connect Two in Parallel for More Current Connect Two in Series for Higher Voltage Model 1680 and Model 1682 High Current Fixed DC Power Supplies Model 1670 Triple Output DC Power Supply Models 1785, 1786 and 1787 N Programmable Power Supplies 12 c c c c c c c c c c c c Analog 0-32 V Analog 0-64 V 2.5% 2.5% Ammeter Range High Range 0-1.04 A 0-2.20 A Low Range Ammeter Accuracy 0-0.28 A 2.5% 0-0.55 A 2.5% 70 W 210 W Power Consumption Dimensions (H W D) Weight 3-digit LED 0-99.9 V (green) (0.5% rdg + 2 digits) 0-9.99 A (red) (0.5% rdg + 2 digits) 210 W 0.2% +2 mV 0.04% +2 mV 100 s 1 mV rms 300 ppm/C Analog 0-32 V 2.5% 0-3.20 A 0-0.53 A 2.5% 180 W 3-digit LED 0-99.9 V (green) (0.5% rdg + 2 digits) 0-9.99 A (red) 2.5% 0-1.10 A 2.5% 450 W 6.2" 5.5" 12.5" (158 140 318 mm) 8 lbs. 3.6 kg 731-1710. Model 1710 ......................EACH 235.00 731-1711. Model 1711 ......................EACH 315.00 731-1715. Model 1715 ......................EACH 389.00 12 lbs. 5.4 kg 12 lbs. 5.4 kg 3-digit LED 0-99.9 V (green) (0.5% rdg +2 digits) 0-4.40 A (0.5% rdg + 2 digits) 180 W Analog 0-64 V 0-9.99 A (red) (0.5% rdg +2 digits) Analog 0-18 V 2.5% 0-11.0 A 0-2.20 A 2.5% 420 W 380 W 5.7" 10.5" 15 " (145 267 381 mm) 10.5 lbs. 4.7 kg 10.5 lbs. 4.7 kg 731-1730. Model 1730 ......................EACH 319.00 731-1735. Model 1735 ......................EACH 389.00 731-1740. Model 1740 ......................EACH 515.00 23 lbs. 10.4 kg 24 lbs. 10.8 kg 20 lbs. 9 kg 731-1743. Model 1743 ......................EACH 515.00 731-1746. Model 1746 ......................EACH 515.00 Products Not Cataloged Are Available N Call 1-800-433-5700 For Price And Delivery