BEST SELLERS

Shaped like a thick hockey puck, this outstanding Bluetooth® speaker won’t knock your teeth out (like a real hockey puck) but it might blow your mind. Rechargeable and portable, the speaker measures 2-1/2” dia x 1-1/2” thick in dark blue with the logo of the bank whose name adorns a hockey rink in Our Nation's Capital. Feel free to cover it up, like the Blackhawks fans in our office did. Rechargeable batteries are lithium, which is better, and it charges via the included USB to micro-USB cord. Comes with a microphone, microSD card slot, volume control, play/pause/phone selector, and next-song feature. Sounds good enough for Paul to drown out Pat's ambient Australian heavy metal holiday music. Priced at half the MSRP and is perfect for the pool, park or cubicle.

To heat what is anybody's guess, but it's a U-shaped heating element, 8-3/8" x 2-5/8" x 1/4" dia with a 107 Ohm Resistance and rubber grommets above the 3/16" wide power terminals. When CJ heated it up to 120F, those grommets got gooey, so he says use lower voltage DC.

Sometimes leather just isn’t enough. In times like those, we pack an RFID-protection rubberized case wallet like this one. Has a plastic accordion organizer inside with (6) slots for cards, and the slots easily fit multiple cards. One side of the case is ribbed, at 4-1/2” x 3” x 3/4," you can slip it easily into your pocket. Clasp is simple but effective, and easy to use with one hand. In assorted colors and finishes and we'll try to pick one that will go with something you regularly wear.

You've seen cords on lights—pull the cord, turn on the ceiling light—right? Well, this is the reverse. Tie the cord onto something on the ceiling, pull the bulb on the bottom and it lights up. Seems backwards, because it is, but it somehow makes sense when you want the light on the end of the rope, not on the ceiling, and don't you think you've been doing things right-side-up for long enough? Bulb is 40 lumens, cool white for indoors, and runs on (3) “AAA” batteries that the manufacturer didn't include.

Not you, your phone. This little wireless charging disc measures 4” dia and has an LED indicator light. Includes a 3-foot USB to mini-USB to connect to a PC or adapter. Manufacturer says it will charge through most phone cases. Pat has one on his desk, and he can’t get enough of it.

Please Note: Jarvis says, check and make sure your phone is compatible with wireless charging.

You get a 10ml syringe of white silicone heat sink compound for use as a thermal coupling for electronics. High conductivity, low bleed and stable at high temperatures. Perfect for you electronic tinkerers out there with a sinking feeling.

Like a third hand in the electronics lab, this circuit-board rack from Elenco® has a pair of stable 6-1/2" legs and 3" tall arms with clips, one spring-loaded, to hold the board. It's a must for any electronics DIY-er. Adjusts from 0 to 9-3/8" apart and lets you rotate the board it holds a full 360 degrees. Both clips and legs lock with thumbscrews.

Good things come in little packages. In this case the package is a 1-1/4" x 1-1/4" x 1/2" modulator, and the good things are a circuit board with at least a trimpot, electrolytic capacitor, assorted coils, 3-pin connector, RCA plug and (2) pop-off covers. Have a blast.

Okay, they’re just strips of metal, but CJ says one of each and a grapefruit will get you at least a “C” at the science fair. The copper electrode is 100mm long x 18mm wide  x .8mm thick (3.94" x .7" x .041”). The zinc electrode is 4” long x 3/4” wide x .027” thick and stamped “ZN”. And both of them are awfully useful for crafters and jewelry makers, too.

These large momentary SPDT push-button switches are rated 10A at 125/250VAC and are mounted to a 2-7/16"dia lens plate with a 1-1/8" long x 15/16 - 2 shaft that comes with a plastic washer and nut. There's also an internal 12V 3W replaceable indicator bulb. Needs 3" of rear clearance. You pick a red, green or yellow lens.

Our 5-foot, 18 gauge, black computer power cord is grounded, with a 3-prong IEC end. IEC cords are used to connect a lot of electronic equipment, including (yes) computers, but also musical instrument amplifiers, professional audio equipment and virtually all professional video gear. It’s never a bad idea to have an extra one or two of them at the ready.

These insulated connectors are made for fastening pairs of wires together. Ours are rated for up to 400v and measure 1" x 3/4" x 5/8". The ID on the wire ports is 3.6mm and the wires are clamped down by setscrews. Our each is a pack of (10). UL/CSA.

It's the Hollywood Selfie Pole Monopod, and the name alone is making us go all soft in the middle. Starts out 8-1/2” long and extends to a very sturdy 39” with a camera thread at the end to hold the cell-phone holder. And like many people in Hollywoodland, it probably won't work as intended. The handle was meant to recharge with the included USB cord and connect to your phone with Bluetooth, however we've found that the non-replaceable batteries are mostly non-working or only hold a charge for a few minutes, like a faded actor's career. Sold for the robust stick itself because your arms aren't long enough. And you can always repurpose it for long distant tasks.

These on-ear wireless rechargeable bluetooth headphones aren’t before, they’re B3, which means they’re now—and the future, too. For people who don’t like cramming little buggers into their earholes, these phones have soft earpads for comfort, a solid adjustable headband, Bluetooth®, 10 hours of playback time on battery power, and great sound. They might change the way you listen to your jams. Aux cable included, plus a Micro USB cable for charging. Phones also fold for storage in the included drawstring pouch.

A design triumph, this little (2-3/8" dia) Bluetooth remote speaker with built-in amp looks like a doorknob with a suction cup on the back. And it's water-resistant, so you can take it into the shower with you and never have to listen to  yourself sing again. Stick it up within 30 feet of the source and it spits out your tunes. In plastic and rubber, it has an internal lithium battery, volume and answer controls, and a USB cord for charging the battery. We'll pick one in blue, black, or green, because we know what will go with your eyes.

Indoor reception--always the safest choice. You know, in case it rains. But seriously, folks, do you love watching TV as much as we do? Pull in your digital and analog stations with this refurbished passive indoor antenna from RCA. It’s passive--just like TV-watching! Has a pair of 5-draw 39" dipole antennas (or do you say antennae?), a 7" x 4" loop and a 54" cord with a coax “F” connector to hook to your TV or receiver and pulls in HDTV, UHF, VHF and FM up to 1080i. Base is a compact 5" x 3-1/4" x 1-1/4" so it’ll fit pretty much anywhere and won’t hog space, unlike some pets on some couches.

High tech comes to Am Sci & Surp!! It is here in the form of a Peltier junction, a thermo-electric device that translates electric power into heat, and perversely, into cool. Apply current at 15VDC to the gizmos and they extract thermal energy from one face, thereby cooling it. The heat is dumped onto the other face, thereby heating it. Please note: you must use a heat sink on the hot side or the junction will fry itself, since it can quickly create a 65° C temperature differential in a no load situation. Stack two, or build a cascade to increase the thermal differential created. Or run it backwards. Apply heat or cold to the relevant face and produce a current. Amazing for science projects and experiments. Practical for coffee warmers, beer coolers and mini-refrigerator or warming oven applications. They come with a datasheet. Large is 1-9/16" sq. x 3/16" thick and draws 6A and small is 1-1/4" sq. x 3/16" thick and draws 3A.

When you could just order this 480-pack of 1/4 watt, 5%-tolerance resistors. You'll get (30) pieces each of 10, 22, 47, 100, 220, 470, 1K, 2.2K, 4.7K, 10K, 22K, 47K, 100K, 220K, 470K, and 1M OHM.