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PO Box 716, Amherst, NH 03031-0716 USA

Acoustic Devices
Updated 08/20/08


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To order, click on the ITEM NUMBER. To enter item numbers from the catalog use: Direct Order Entry

Hear The Incredible World Of High
Frequency Sounds - Beyond That Detectable By The Human Ear!!

Ultrasonic Receiver

ht90b.jpg - 3.69 K Directional device allows you to hear and pin point mechanical and electrical sounds such as leaking gases, air, corona, motor frictional noises etc..

Hear bats, insects and other sounds of mother nature - even beading water!
Click HERE for actual bat sounds recorded using the HT90

View Instructions(Adobe PDF)    Download Instructions(Zipped Adobe PDF)

HT9 - Plans (By Download - $4.00) ...................$10.00
HT9K - Kit/Plans..............................................................................$99.95
HT90 - Assembled with Headsets (HS30 Shown Below)....$149.95
HT90P - Rental ....................................................................$25.00/30 days
HT90P - Assembled with Headsets/Reflector(as pictured).$199.95


Great Low Cost Hearing Aid!
Cybernetic Ear

cyberear
Enhances Normal Hearing 3 To 4 Times
Use for courtesy lowering of TV volume, etc.. Detect rattles, mechanical abnormalies, leaking gases, air, electrical corona. Excellent safety aid for lab or shop.
  • Adjustable Volume Control
  • Fits Into Either Ear
  • Long Lasting Batteries

This is not a suitable device for the hearing impaired.

CYBEREAR - Ready to Use......................$19.95


Hear A Distant Whisper!!
Amazing Electronic Turbo Ear

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  • Greatly Amplifies Hearing
  • High Quality Device
  • With Hi/Lo Filter
  • Adjustable Volume
  • Built In Light Indicator
  • Uses 1 AAA Battery
  • Small Size 2.75"x 1.75"x .75"
This is not a suitable device for the hearing impaired.

TURBO - Ready to Use............................$19.95


Quality Stereo Head Sets

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  • Cushioned For Comfort
  • Individual Volume Controls
  • 8 Ohm Input Fits 3.5 mm or 1/4" Jack
  • Use On Our Equipment
HS30 - Deluxe Headsets.........................$19.95

bioear

Super Sensitive
Parabolic Bionic Ear

Amplifies Normal Hearing 37 Times! Hear a conversation up to 100 Yards

Flashlight sized electronics is interfaced with a 12Ó light weight plastic parabolic reflector providing over 30 db of pick up gain! Includes cushioned high quality headsets.

BIOEAR10 - Ready to use.......$159.95


20" Parabolic Microphone

Hunters, trackers, nature enthusiasts, and special events!

Hear conversations up to 300 yards!!

Use satellite technology to focus distant sounds to an ultra high gain/low noise amplifier with voice enhancement system includes separate volume high performance headphones.

  • 20" Snap-Together Dish
  • High Gain Low Noise FET Amplifier
  • Built In 3 Band Adjustable Equalizer
  • 2 "AAA" Battery Operated
  • Recording Jack and Tripod Mount
  • Carrying Case
  • Quick Assembly
PM60 - Assembled................................$459.95
Parabolic Microphone

Optional Wireless Retrofit

Transmits picked up sounds to a standard FM radio. Great advantage when in those hostile, uncomfortable, mosquito infested swamp areas!

WM5K - Kit/Plans..................................$49.95


Shotgun Directional Microphones
Intended for Long Range Nature Listening and Video Recording

Low Cost
Shotgun Mike

Super directive pickup garners objective sound in loud environments. Shakeproof holder works as a dampening mechanism to cut case and handling noise. Uses a AA battery, 600 ohm input, 50-10,000 Hz response. With windscreen and case. Can be used with our HGA90 high gain amplifier

SHOT50 - Built in preamplifier..................$129.95

shot50

Best Performance

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  • Size: 18.5 X .83"
  • Weight: 9 Oz.
  • Sensitivity: 12.6mv / 10 microbars
  • Power: External
  • Acceptance: 40 Degrees

SMAT815R - Best Shotgun Mic..............$499.95

Build Your Own
Shotgun Microphone Project

Experimental device, when properly constructed allows sounds to be heard thru windows, pick out whispers in a crowd, etc.. sm3.gif - 2.78 K

  • Uses 36 Tuned Tubes
  • Battery Operated
  • Built In Voice Filter
  • Includes Our High Gain Amp With Headsets
SM3 - Plans...........................................................$10.00
SM3K - Kit/Plans (TripodNOTIncluded).........$149.95

Super Performance
Voice Amplifier Project

Ultra low noise design intended for accoustical or optical science project applications. Build in voice enhancement filter reduces unwanted background noises. Excellent circuit for directional mikes, nature listening, laser window bounce experiments, vibration detectors etc..
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  • 8 Ohm Output/3.5 mm Jack
  • Sensitive Cap FET Mike
  • On/Off Switch With Gain Control
  • 9 Volt Battery Operation
  • 1.5" x 5" Board - Easily Enclosed
HGA9 - Plans (By Download - $3.00) ......$8.00
HGA9K - Kit/Plans.................................................................$39.95
HGA90 - Assembled - Housed in PVC Tube...................$79.95
noise curtain generator

Noise Curtain Generator

Neat little circuit plugs into existing stereo, radio recorder and produces a band of noise containing a wide spectrum of frequencies [white noise]. Jams microphones - Provides a soothing relaxing sound.

NC4 - Plans (By Download - $2.50) ..............$5.00
NC4K - Kit/Plans....$14.95 NC40 - Assembled....$24.95


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Inquiries: 603-673-4730 | Orders: 800-221-1705 | Fax: 603-672-5406 | Email Contact


noback.gif - 35.28 K
PO Box 716, Amherst, NH 03031-0716
USA
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