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Quad Power

The Quad XP-581 from Elenco provides four separate, fully regulated power supplies. Three are fixed and yield +5 VDC at 3 amps, -12 VDC at 1 amp, or +12 VDC at 1 amp. The fourth supply is variable, producing 2.5 to 20 volts of DC output at up to 2 amps. Line and output voltages are regulated to within 0.05 volts, and the supply is linear. All four supplies are shortproof as well. A current foldback circuit in each supply collapses the field in the event of a short, a current surge from the line, or an excessive current demand. Thus, both the Quad XP-580 and the equipment it's driving are normally protected from inadvertent errors or power company problems. Elenco built the supply as only Elenco will. The handsome, hooded metal case, - measuring 3-1/4" x 8-1/4" x 9-1/4" and weighing nine pounds - has a 3-wire grounded power cord for 115 VAC operation, panel meters for both current and voltage, and standard jacks for accessing the four regulated supplies. A two-year limited warranty and schematic is also included.

5116 QUAD POWER SUPPLY
$97.95 EACH

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Azure Blue

The sky and this tough acid resistant, flame retardant .035" thick vinyl. I always forget how many decimal places to shift for mils - just trust me, this is heavy duty. It has a screen printable gloss finish and is 39-1/2" x 24". Quick experiments here indicate that a Sharpie(tm) will "take" on this stuff, but most markers don't. It's just longing to be cut up into place mats, high chair mats, stencils, art mats, or your craft project.

must go 26690 BLUE VINYL
$1.50 EACH (was $3.50)

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Pencil Torch

Refillable butane torch, with a 1/2" dia x 5-3/4" body and a 1/4" dia. x 2-1/4" long head. Strong enough to melt solder, silver and gold solder, glass tubing and such metals as gold, silver, copper, tin, and aluminum. Equally handy around the hobby shop, jewelry bench, or lab. Refills from standard butane lighter canister.

22490 PENCIL TORCH
$7.95 EACH

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No More Cooked Kids

Cranked-up water heaters mean clean laundry, but risky showers. The 1-1/2" wide x 2" long Scald Guard has a standard 3/4" thread, and screws in between your shower head and water pipe. You decide what "too hot" is, and the adjustable valve reduces the water flow to a trickle when it hits that temperature. Make life safer, especially for the very young and the very old.

must go 28854 SCALD GUARD
$1.00 EACH (was $1.75)

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Portable Oscilloscope

The Velleman HPS10 Personal Scope isn't some graphical multimeter -- it's the complete, portable, affordable oscilloscope you've been waiting for! The 10MHz oscilloscope has an analog bandwidth of up to 2mhz. It has 5mV to 20V/div sensitivity in 12 steps, and a 200ns to 1 hour/div time base in 32 steps, full automatic setup, and 5 different trigger modes. It measures dBm, dBV, DC and rms, has signal markers for Volt and Time, and 2 memories to store signals. It has an X and Y position shift signal, DVM readout with x10 option, and audio power calculation (rms and peak). Easy to use and, with a high-contrast LCD display (128 x 64 pixels), easy to read. Accurate enough for professional use on automotive and audio equipment, digital signals and various types of sensors, but priced low enough for educational and hobby applications. Requires (5) "AA" batteries or a 9V adapter (not included).

92223 OSCILLOSCOPE
$169.95 EACH

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Punch That Cow(hide)

This sturdy steel punch for leather goods has a coiled-steel spring, and (6) screw-in punches. Make 2, 2.5, 3, 3.5, 4 and 5mm holes, even in heavy leather. 8-1/2" long OA.

92453 LEATHER PUNCH
$16.95 EACH

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Not For Big Mouths

A lovely mini-funnel, made for pouring Dad's special medicine into a hip flask, but just dandy for filling salt and pepper shakers or anything else with a little yap. Stainless steel with a 1-3/8" ID intake mouth and a 5/16" ID outlet. 1-7/8" tall OA.

92731 STAINLESS FUNNEL
$1.50 EACH

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Digital Light Meter

This Velleman DVM 1300 Light Meter displays measurements between 0.1 and 50K lux in (5) different ranges on a liquid crystal display with (4) 1/2" high digits. Filtered 1-1/2" dia sensor on a 13" coiled cord. The 4-5/8" x 2-3/8" x 7/8" case has reflective tape on the back for dealing with a shadow. Comes in a vinyl case with a recommended-illumination chart and a 12-volt battery.

92715 LIGHT METER
$59.95 EACH

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A Working Wonder

If we had a category just for customers who lust after Jules Verne inventions and elegant gadgetry, this would be in it. The wonderful brass sundial, a reproduction of an antique, is approx 3" dia x 11/16" thick overall, and actually works! A latitudinal gauge lets you tilt the engraved dial to the correct angle for your location, and a bubble and three leveling feet allow the 1-1/2" dia lock-down compass to point in the precise direction. And if you never took it out into the sunshine, you'd still love it for the look and logic of it.

92848 BRASS SUNDIAL
$21.75 EACH

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Scope This Out

Because it's one excellent spotting scope from Celestron®. A Maksutov-Cassegrain design with multi-coated optics, it has a 65mm dia aperture and 30-90X magnification. It comes with a tabletop tripod that adjusts from 9-1/2" to 12-1/2" tall, and has fine-tuning knobs for horizontal and vertical angles. The scope itself, with an image-erect 45-degree eyepiece, weighs just over a pound and measures 3-1/8" dia x 8-3/4". Comes in a very nice black, soft carrying case with a shoulder strap, a hook-and-loop closure, and a handy chamois tucked inside.

14435 SPOTTING SCOPE
$69.95 EACH

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Measuring pH

This handheld pH meter from Hanna Instruments measures 0-14 pH to 0.01 resolution, accurate to +/- 0.2. Calibration screw for 7.01, and another for 4.01 or 10.01 pH. The unit is 6-3/4" X 2" X 15/16" OA, with a 4-digit 1-1/8" X 1/2" LCD readout, and a replaceable 4-1/8" long x 9mm dia probe that screws into the case. Comes with a tip cover for the probe and (2) button-cell batteries. Don't forget to order the 20mL foil packs of pH 4.01, 7.01 or 10.01 Buffer Solution, with a chart listing the specific pH of the solution at various temperatures. Made for laboratory or industrial use only, it has a tolerance of +/-0.01 pH at 77°F. Also from Hanna Instruments.

93947 BUFFER SOLUTION PH 10.01
$1.95 EACH
93946 BUFFER SOLUTION PH 4.01
$1.95 EACH
93009 BUFFER SOLUTION PH 7.01
$1.95 EACH
92999 PH METER
$41.95 EACH

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