What’s New IN ELECTRONICS (Jun, 1973)
What’s New IN ELECTRONICS
Fire fighter Mounted near the carburetor of an inboard or I/O engine, the Firemaster discharges one pound of liquefied fire-fighting gas automatically if the temperature reaches 230 degrees F. $14.95 with mounting bracket. John E. Martin Sales, Penllyn Pike, Spring House, Pa. 19477.
Automatic plug Countless boats have sunk right at the dock because the drain plug was left out. Drain Check prevents this. When the water level rises above the drain, a check ball floats into position to keep the water from entering the drain tube. It’s $8.45 from DePersia, Grand Haven, Mich. 49417.
Underwater PA Hang the new Scuba Jr. system on your belt and you can talk underwater. Designed for swimming and scuba instructors, the amplifier and speaker can instruct an entire class without need for individual receivers. Complete, it’s $250 from Lubell Labs, 21 No. Stan-wood Rd., Columbus, Ohio 43209.
Answer machine Strictly business, the HP-80 pocket calculator solves virtually all financial calculations involving relationships between time and money: compound interest, depreciation, truth-in-lending, bond yield, and much more. The Hewlett-Packard instrument is $395.
A hang-on stereo system You can’t get much more portable than this stereo receiver system. The Headhugger is a complete FM-stereo radio that you just hang over your ears. Battery-operated, the unit receives all standard FM broadcasts from 88-108mHz, and a built-in multiplex adaptor channels the stereo transmissions to each ear. Side-mounted dials control station tuning, volume, and left-to-right earphone balance. A nine-volt battery powers the IC receiver and two 2-1/2-in. dynamic speakers reproduce sound. Heavy padding and a flexible headband keep it all comfy. Headhugger sells for $59.95. Maker: Triumph Electronics, 599 S. Wheeling Rd., Wheeling, III. 60090.
Digital timer Don’t want to miss your favorite TV show? Plug the set (or any standard appliance up to 1200 watts) into this digital timer, and it will come on at just the right time. The 707, by Triumph Electronics, sells for $29.95.
Mini TV camera The next sporting event you watch on TV may be coming live from one of these new color cameras from Norelco. The PCP-72 camera head weighs just 19 pounds, and the “mini-hip-pack”—the size of a cigar box—just six.