Build a Simple Bat Detector
...
Finding the Parts...

The following lists give sources for all of the critical parts used in building the Simple Bat Detector. The lists are organized by country and include web sites, mailing addresses, and phone numbers for various electronics parts sources. Thanks to the correspondents that have helped me compile this list. If anyone can help me do the same for other countries, I'm sure your fellow countrymen will appreciate it ! Send me an email at: T-Rex@ix.netcom.com.

Generally Available Parts

These parts are generally available at any well stocked electronics part supplier...

• LM386N-1 integrated circuit amplifiers - ( IC1 & IC2 )
• 3.5 mm, 3 circuit ( stereo ) phone jack
• Phenolic or Fiberglass Perf Board
• 470 uf , 16 volt, electrolytic capacitor
• 10 uf, 16 volt, tantalum or electrolytic capacitor
• .047 or .05 uf mylar, or ceramic capacitor
• 9 volt battery clip with wires

Essential Parts List for Australia

• Ultrasonic Transducer - Oatley Electronics: 40KHz receive (MA40A3R)
• CD4024 - binary counter ( IC3 ) - Dick Smith: P/NZ5624
• Plastic Case - Jaycar Electronics: P/N HB-6015
• High Impedance Ceramic Earphone - Dick Smith: P/N C2765
• 10 KOhm, PC mount variable resistor - Dick Smith: P/N R1771
• 3.5mm Earphone Jack - Dick Smith: P/N P1240
  

Electronics Parts Sources in Australia

Note: Bob Gration has assembled a quantity of complete parts kits for an Australian version of the enhanced
Simple Bat Detector. For more information on obtaining one of these kits, please email him at: rgration@yahoo.com.au

• Dick Smith Electronics and Jaycar Electronics: Most of the parts for the Simple Bat Detector. Both of these companies are located throughout Australia. A nearby store may be found in your local phone directory.
  
  
• Oatley Electronics: This is a source for the 40 kHz piezo transducer. Their website is at: www.oatleyelectronics.com.

Essential Parts List for Canada

• Ultrasonic Transducer - Maplin: P/N HY12N - ( This is a pair of 40 kHz transducers, one receive and one transmit . You will use the receive unit for the detector. This transducer detunes well with a 12 mH coil ! )
• HCF 4024 BEY - binary counter ( IC3 ) - Maplin: P/N QX13
• Plastic Case with 9 volt battery clip - Maplin: P/N ZB17
• High Impedance Ceramic Earphone - Maplin: P/N LB25
• 10 KOhm, PC mount variable resistor - Maplin: P/N UH03

Electronics Parts Sources in Canada

• Maplin Electronics: The essential parts of the Simple Bat Detector are available from a Maplin Electronics parts supplier. Maplin's website is at: www.maplin.co.uk. In Canada, Maplin parts are available from from Quality Kits.
  
  
• Radio Shack: Radio Shack stores are a good source for the most of the generic parts of the detector. Check your phone directory for locations of stores in your area. The Radio Shack website for Canada is: www.radioshack.ca.

If you are in Japan, and wish to build a bat detector...

You may wish to contact: Hisafumi Tateno , who is dedicated to teaching children about the bat, as well as other environmental and ecological topics.We have been corresponding in an effort to identify locally available parts to build the Simple Bat Detector. He is happy to share ideas and enthusiasm ... you can reach him by email at: fwgg9144@mb.infoweb.ne.jp

Essential Parts List for the United Kingdom

• Ultrasonic Transducer - Maplin: P/N HY12N - ( This is a pair of 40 kHz transducers, one receive and one transmit . You will use the receive unit for the detector. This transducer detunes well with a 12 mH coil ! )
• HCF 4024 BEY - binary counter ( IC3 ) - Maplin: P/N QX13
• Plastic Case with 9 volt battery clip - Maplin: P/N ZB17
• High Impedance Ceramic Earphone - Maplin: P/N LB25
• 10 KOhm, PC mount variable resistor - Maplin: P/N UH03

Electronics Parts Sources in the United Kingdom

• Maplin Electronics: The essential parts of the Simple Bat Detector are available from a Maplin Electronics store, or parts supplier. Maplin's main web site is at: www.maplin.co.uk . Here is a list of Maplin stores in the United Kingdom.
  
  
• Tandy: Tandy stores are a good source for the most of the generic parts of the detector. Check your local phone directory for locations of stores in your area. Tandy's website is: www.tandyuk.co.uk .

Essential Parts List for the United States

• 40 kHz Ultrasonic Transducer - Mouser 255-400SR16
• 6.8 mH Detuning Coil - Mouser 434-02-682J
• CD4024BCN - binary counter ( IC3 ) - Digi-Key: P/N CD4024BCN-ND
• Plastic Case with 9 volt battery clip - Mouser: P/N 616-61980 ( black )
• High Impedance Ceramic Earphone - Mouser: P/N 25CR035 ( 3.5 mm plug )
• 10 KOhm, PC mount variable resistor - Mouser: P/N 531-PT10V-10K

Electronics Parts Sources in the United States

• Digi-Key Corporation: 701 Brooks Avenue South, Thief River Falls, MN 56701
  Order Line: ( 800 ) 344-4539 - web site at www.digikey.com
  
  
• Mouser Electronics: 958 N. Main, Mansfield, TX 76063
  Order Line: ( 800 ) 346-6873 - web site at www.mouser.com
  
  
• Radio Shack: If you are in the United States, there is likely a Radio Shack store in your town.
  Check the yellow pages on this one. Their web site is at www.radioshack.com

Tony Messina - email: T-Rex@ix.netcom.com - This list was last updated on December 3rd, 1999

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