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This Polaroid brand indoor/outdoor HDTV antenna, approx 9-1/2" x 5" x 1-1/2", is ideal for patios and decks. Reception up to 50 miles, and works with all digital HDTVs and analog TVs, receiving full band HDTV/VHF/UHF signals. Sleek, white, shark-tooth design. Will stand on its own, but also mounts to concrete, brick, drywall, wood or a mast. Includes all mounting hardware and a 6-foot-6-inch coaxial cable. Watch local network broadcasting with no fees—you know, like in the olden days.

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.

OK, we don't know how to pronounce the Scosche company's name, but we like saying a skosh more, so we did. Anyhoo, this Scosche TUNEIT is a digital FM transmitter made to play music over your car stereo. Connect to the output with the integrated AUX cable, find an unused FM frequency on your stereo (the dial is full of them), and you'll be dancing on the roof in a matter of moments. Compatible with Apple iPhones and iPods, Samsung Galaxy, Android, MP3 players or anything with a 3.5mm Aux output. The oversized backlit display is on a flexible neck and has control buttons to scan between (100) radio stations and preset (3) of your favorites.

And save a bundle. The "Kill-A-Watt" plugs into a wall outlet and accepts the power line for any devices or appliances that draw up to 1875 watts. Identifies energy eaters, tracks efficiency and costs over time, and checks on your electricity provider by monitoring voltage, current (amps), watts, kilowatt hours, frequency (Hz), volt amps, power factor, and elapsed time. Measures 5-1/8" x 2-3/8" x 1-7/16" with a 1-3/4" x 11/16" LCD screen. You may never use a waffle iron again.

This torquey take-out 6-24VDC (12VDC nominal) motor draws approx 250mA no load, stalls at 7.2A and spins approx 5700 rpm. Measures 2" x 1-13/32" with a 3/4" x 1/8" flattened shaft and may have a setscrew-mounted coupler that resembles a router bit. Has prewired leads. Mabuchi part no. RS-545SH.

Build your own quartz antenna. These (2) 4-3/8" x 3" x 1-5/16" plastic boxes each have (2) boxes of quartz crystals inside and (2) aluminum U-brackets that are attached to a single screw terminal on one short side of the box. Back in the early 70's, they were originally made to be used in pairs as part of a 300 Ohm antenna. Not sure if they will work with today's TV's but all you need is cabling to connect them and give it a try. Made in Brazil, the antenna capital of South America, probably.

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.

So you like Nickel-Metal Hydride rechargeable battery bargains? You choose a 4-pack of "AA" 2600 MAH or "AAA" 1000 MAH NiMH batteries, the recommended choice for electronics, cameras, games, cordless phones and toys.

The manufacturer, Elenco Electronics, says Bredblox, but what's in a name? This is just a nice little breadboard for electronic experiments. The Elenco Model 9830 measures 6-1/2" long x 2-1/8" wide x 5/16" thick with (2) power busses up both long edges and (63) double rows of more busses. The holes for components and jumper wires are approx .050" each and multiple boards can be interlocked via tabs and ports on the long edges. Now go invent something and get rich.

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.

Our each is a pack of (10) common cathode 5mm dia red/green/blue LEDs. Clear lens, 20mA rated for 100K hour life. 3V supply will work for all. You also get 100 Ohm and 510 Ohm resistors to step down 5 and 12VDC respectively. Luminous intensity is 4,000 mcd.

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.

...tooth. These rechargeable Bluetooth® wireless earbuds are made for gym rats, or at least people who exercise and don't want to sweat all over their electronics. Sport hooks keep them securely on your ears as you jog, step, skip, hop or whatever you do at the gym. Buds themselves are sweat-resistant and comfy. Also tangle-free with a built-in mic, which also controls pause/play/call pick-up. Wires are approx 24" long.

Devil Music? That’d be Tartini’s ‘Sonata In G Minor’, saxophones and anything you play out of this cute, lightweight Bluetooth speaker. Don’t be fooled by its size—this little red egg with horns has a nice full range of sound, and recharges via USB port so you can listen to the devil on your shoulder bag, bicycle or wherever you go. Just hang it by the attached wrist strap. Plus, you can pair (2) for stereo sound thanks to the magic of True Wireless Technology. When paired to your phone or tablet, you can use it as a remote shutter for taking selfies or use the built-in mic for hands-free phone calls. Has a range of about 10m (33 ft.) and glowing LED indicator eyes.

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.

Connect your sundry devices to aux inputs and listen to bigger music. Our each is a three-foot, flat audio cable with standard 1/8” headphone TRS (3.5mm) plugs at each end. From FusePlus, and the color is black, but that doesn’t really matter, does it?

Our 2-position terminal block is rated for 300V and measures 3/4" x 5/8" x 5/8" tall with set-screw terminals and a 3.6mm ID. 300V max rating. CSA.

Bring your wall warts back to life with these barrel connectors with screw terminals. The barrels are the popular 5.5mm OD x 2.1mm ID size, and have screw terminals on the other side to accept the wires from your adapters, bringing them back to life. Will accept a wire up to 16 AWG. Housing is 1” long and marked for polarity. The negative terminal is the sleeve. Our each is a pack of (5).