Sorensen DCR 150-2.5A. Output: 0 to 150 VDC, 0 to 2.5 ADC, CVCC supply, Dual Meters, Input: 104-127 VAC, 50-63 Hz. Used, checked, guaranteed! Price: $350.00

Sorensen Model DCR 20-25B Power Supply. (Inv #7621) CVCC (constant voltage- constant current) supply rated output: 0-20VDC, 0-25ADC. Input: 103-127VAC, 50/60Hz, 9.5A. Features: dual meters, coarse/fine voltage and current controls, rear-panel adjustable overvoltage control, front-panel voltage monitor output, can be set up for remote voltage/current sensing and parallel operation. Good used condition, checked, guaranteed. Price: $295.00

Sorensen Model DCR 20-25B Power Supply. (Inv #7622) CVCC (constant voltage- constant current) supply rated output: 0-20VDC, 0-25ADC. Input: 103-127VAC, 50/60Hz, 9.5A. Features: dual meters, coarse/fine voltage and current controls, rear-panel adjustable overvoltage control, front-panel voltage monitor output, can be set up for remote voltage/current sensing and parallel operation. Good used condition, checked, guaranteed. Price: $295.00

Sorensen Model SRL 40-12 Power Supply. (Inv #209) CVCC (constant voltage- constant current) supply rated output: 0-40VDC, 0-12ADC. Input: 105-125VAC, 50/60Hz, 13.2A. Features: dual meters, coarse/fine voltage and current controls, front-panel adjustable overvoltage control, front-panel voltage monitor output, can be set up for remote voltage/current sensing and parallel operation. Good used condition, (two cast-aluminum cooling fins on the rear-mounted heat-sink are cracked), checked, guaranteed. Price: $395.00

Topward TPS-4000 Model 4303 Triple-Output Power Supply. (Inv #7010M) Features dual outputs of 0 to 30 VDC at 0-3 ADC and a fixed 5V 3A supply. The two 30 Volt supplies can be operated as independent or tracking and can be used in parallel or series operation. Both 30 Volt supplies are Constant Voltage / Constant Current type and include LEDs to indicate the mode of operation. Load Regulation: Constant Voltage Mode- 0.02% + 2mV, Constant Current Mode- 0.02% + 0.5mA, Line Regulation: Constant Voltage Mode- 0.02% + 2mV, Constant Current Mode- 0.02% + 0.25mA, Ripple and Noise: Constant Voltage Mode- 0.5 mV(rms), 4 mV(p-p), Constant Current Mode- 0.5 mA(rms), 4 mA(p-p). Very good used condition, checked, guaranteed. Price: $275.00

General Radio Model V5MT Variable Transformer 0-134V. (Inv #7314) Compact "workhorse" variable transformer. Range, 0-134V, 5A. It utilizes three-wire input and 2-wire output and the control knob is graduated in voltage. Input: 120VAC, 7.5A fused maximum. 6.5kVA maximum output . Very good used condition, checked, guaranteed. Price: $75.00

Matheson Scientific Model 2PF751 Variable Transformer 0-120V/140V. (Inv #7256) Compact "workhorse" variable transformer. Dual range, 0-120V, and 0-140V. It utilizes three-wire input and 2-wire output and the control knob is graduated in both voltage ranges. Input: 120VAC, 7.5A fused maximum. 1.05kVA maximum output . Good used condition, checked, guaranteed, Price: $85.00

Superior Electric Co. Model 116 Powerstat Variable Transformer, 0-140V. (Inv #7312) The Model 116 output is 0-140V at 7.5A (1kVA). Power required: 120V 50/60 Hz. Very good used condition, fully checked, guaranteed. Price: $85.00

Superior Electric Co. Model 126 Powerstat Variable Transformer, 0-140V. (Inv #7310) The Model 126 can be wired for either 0-120V, or 0-140V operation. Dial graduated as 0-100% of rated voltage as set-up. Maximum output at constant current loads is 15A. Power req. 120V, 15A. Very good used condition, fully checked, guaranteed. Price: $135.00

Superior Electric Co. Model 126 Powerstat Variable Transformer, 0-140V. (Inv #7306) The Model 126 can be wired for either 0-120V, or 0-140V operation. Dial graduated as 0-100% of rated voltage as set-up. Maximum output at constant current loads is 15A. Power req. 120V, 15A. Very good used condition, fully checked, guaranteed. Price: $135.00

Superior Electric Co. Model 126 Powerstat Variable Transformer, 0-140V, 15A. (Inv #7311) The Model 126 can be wired for either 0-120V, or 0-140V operation. Dial graduated as 0-100% of rated voltage as set-up. Maximum output at constant current loads is 15A. Power req. 120V, 15A. Very good used condition, fully checked, guaranteed. Price: $135.00

Superior Electric Co. Model 126 Powerstat Variable Transformer, 0-140V, 15A. (Inv# 7303) The Model 126 can be wired for either 0-120V, or 0-140V operation. Dial graduated as 0-100% of rated voltage as set-up. This unit is prewired for 0-140V operation with a switched 3-prong outlet. Maximum output at constant current loads is 15A. Power req. 120V, 15A. Very good used condition, fully checked, guaranteed. Price: $155.00

Superior Electric Model L10B Powerstat Variable Transformer. (Inv #7578) Totally enclosed models designed to meet OSHA requirements. For maximum user protection and safety, all models are equipped with a grounded NEMA cord/plug assembly, on-off switch, pilot light, grounded output receptacle and fuse. Variable output 0-132VAC, dial divisions are volts-major 10 volts, minor 5 volts. Maximum 230W, Current Rating: 2.25A. Power req. 120V, 60Hz. Very good used condition, cheched, guaranteed. Price: $69.00

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Dan-Kar Model # DK22-4 2000V/200V Dual High Voltage Power Supply. (Inv #7154) Features: 4 sets of outlets to supply 4 gels; the built in mini power supply allows precise control 0-200V for horizontal gels, mini gels, and low amp blotting; and a high amp module allowing 400ma at low voltages. Excellent used condition, checked, guaranteed. Price: $525.00

EC Apparatus Corp. Model #EC600 Electrophoresis Power Supply. (Inv #7331) Constant Voltage, Constant Current, Constant Wattage electrophoresis power supply rated to 4000V, 200mA, 200W. Good used condition, checked, guaranteed. Price: $495.00

Helena Laboratories 1504 TITAN Plus Electrophoresis Power Supply 0-500V. (Inv #'s 7672, 7673, 7674, 7675) The current model Titan Plus is a completely solid state unit. Digital voltage and current display provides greater accuracy in voltage selection. Synchronous electrophoresis timer assures precise control; timer automatically shuts off current and signals end of run. For use with cellulose acetate, agarose and agar.
Specs:
Voltage: 0-500 VDC. Digital display. Accuracy ± 3V.
Current: Up to 125 mA. Digital display. Accuracy ± 2 mA.
Chamber Requirements: Accepts all standard electrophoresis chambers
Timer: Synchronous, electrical. Up to 60 minutes automatic timing. Audiovisual signal indicates end of run. "Hold" allows for continuous operation beyond 60 minutes.
Output Jacks: Two sets labeled three ways: + and -, Red and Black; Positive and Negative. Standard banana jack spacing.
Dimensions: 5" H x 10" W x 9.5" D (12.8 x 25.5 x 24.2 cm)
Power req: 110V, 60Hz., 1A.
Very good used condition, fully tested, cleaned, guaranteed. Price: $265.00 ea. 4ea. for $900.00

LKB 2005 Transphor Power Supply Power Lid, Mfg. by Hoefer Scientific for LKB Produkter. (Inv #7666) Power lid mounts on top of Transphor Transfer Electrophoresis Units. Power req. 120V, 60Hz. Very good used condition, fully checked, cleaned, guaranteed. Price: $125.00

Med Associates Inc. SG-500 Power Supply. (Inv #7663) Rack Mount 28 Volts, 3 A DC Power Supply. Use with Med Associates, animal behavior research systems. Excellent used condition, fully checked, cleaned, guaranteed. Price: $149.00

Pharmacia EPS 500/400 Electrophoresis Power Supply. (Inv #7664) The EPS 500/400 is a constant voltage or constant current power supply. Specs: Output voltage: 5-500V, continuously variable; Output current: 1-400mA, continuously variable. Maximum power is 200W (voltage X current). Two sets of outputs. Very good used condition, fully checked, cleaned, guaranteed. Price: $265.00

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