Elenco Electronics K-24 Assembly And Instruction Manual
Elenco Electronics K-24 Assembly And Instruction Manual

Elenco Electronics K-24 Assembly And Instruction Manual

Whooper alarm kit

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WHOOPER ALARM KIT
MODEL K-24
Assembly and Instruction Manual
Elenco Electronics, Inc.
Copyright © 1989 Elenco Electronics, Inc.
Revised 2002
REV-D
753224

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Summary of Contents for Elenco Electronics K-24

  • Page 1 WHOOPER ALARM KIT MODEL K-24 Assembly and Instruction Manual Elenco Electronics, Inc. Copyright © 1989 Elenco Electronics, Inc. Revised 2002 REV-D 753224...
  • Page 2 If you are a student, and any parts are missing or damaged, please see instructor or bookstore. If you purchased this whooper alarm kit from a distributor, catalog, etc., please contact Elenco Electronics (address/phone/e-mail is at the back of this manual) for additional assistance, if needed.
  • Page 3 IDENTIFYING RESISTOR VALUES Use the following information as a guide in properly identifying the value of resistors. BAND 1 1st Digit Color Digit Black Brown Orange Yellow Green Blue Violet Gray White IDENTIFYING CAPACITOR VALUES Capacitors will be identified by their capacitance value in pF (picofarads), nF (nanofarads), or mF (microfarads). Most capacitors will have their actual value printed on them.
  • Page 4 The Whooper Alarm puts out a wavering sound that is sure to startle an intruder. It can be used independently or as an accessory to the Burglar Alarm Kit K-23. The Whooper Alarm circuit consists of two oscillators, a low frequency oscillator which drives a higher frequency unit at a predetermined rate.
  • Page 5 CONSTRUCTION Introduction The most important factor in assembling your K-24 Whooper Alarm Kit is good soldering techniques. Using the proper soldering iron is of prime importance. recommended. The tip of the iron must be kept clean at all times and well tinned.
  • Page 6 ASSEMBLE COMPONENTS TO THE PC BOARD SPK - Speaker: Cut two 4” wires and strip 1/8” of insulation off of both wires. Solder a wire to each lug of the speaker and then insert the other end of the wires to the PC board in the place shown on the top legend.
  • Page 7 TROUBLESHOOTING Consult your instructor or contact Elenco Electronics if you have any problems. DO NOT contact your place of purchase as they will not be able to help you. 1. One of the most frequently occurring problems is poor solder connections.
  • Page 8 9. The frequency of oscillation of Q3 and Q4 is about ____________ cycles per second. 10. The speaker is driven by transistors ________ and ________. 1,000; oscillate; 22:1; zero; 5.4V; two; Answers: Elenco Electronics, Inc. 150 W. Carpenter Avenue Wheeling, IL 60090 (847) 541-3800 http://www.elenco.com e-mail: elenco@elenco.com...

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