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22-330.fm Page 1 Friday, August 6, 1999 12:34 PM
Cat. No.
22-330
OWNER'S MANUAL
Please read before using this equipment.
Electronic Components
Tester

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Table of Contents
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Summary of Contents for Radio Shack 22-330

  • Page 1 22-330.fm Page 1 Friday, August 6, 1999 12:34 PM Cat. No. 22-330 OWNER’S MANUAL Please read before using this equipment. Electronic Components Tester...
  • Page 2 22-330.fm Page 2 Friday, August 6, 1999 12:34 PM FEATURES Your RadioShack Electronic Components Tester is a compact device that lets you quickly check many common types of electronic components: • Bipolar transistors • Darlington transistors • FETs (field effect transistors) •...
  • Page 3 22-330.fm Page 3 Friday, August 6, 1999 12:34 PM Important: • This tester is not designed for commercial, industrial, or outdoor use. • The tester is not designed to replace devices such as transistor curve tracers or production test equipment.
  • Page 4 22-330.fm Page 4 Friday, August 6, 1999 12:34 PM Your tester has these features: — Auto On/Off automatically turns on at the touch of a button and off when you finish using it. — Three Connection Options quickly connect components to the tester using its built-in test clips and sockets, or connect components with axial leads to the tester’s component slots.
  • Page 5 22-330.fm Page 5 Friday, August 6, 1999 12:34 PM Notes: • Your tester checks junctions and continuity of connected components. Since not all compo- nents of the same type work the same way, the tester might not accurately test some listed types of components.
  • Page 6: Table Of Contents

    22-330.fm Page 6 Friday, August 6, 1999 12:34 PM CONTENTS Preparation ............. 7 Installing/Testing Batteries ......7 About Your Tester ........10 Test Points ..........10 Controls and Displays ......... 11 Operation ............13 Component/Testing Notes ......22 Continuity ..........22 Diodes ............
  • Page 7: Preparation

    22-330.fm Page 7 Friday, August 6, 1999 12:34 PM PREPARATION INSTALLING/TESTING BATTERIES Your tester requires three AAA batteries (not sup- plied) for power. For the best performance and longest life, we recommend alkaline batteries. Warnings: • To avoid electrical shock, disconnect the tester’s test clips from any equipment before...
  • Page 8 22-330.fm Page 8 Friday, August 6, 1999 12:34 PM Cautions: • Use only fresh batteries of the required size and recommended type. • Do not mix old and new batteries, different types of batteries (standard, alkaline, or rechargeable), or rechargeable batteries of different capacities.
  • Page 9 22-330.fm Page 9 Friday, August 6, 1999 12:34 PM • Dispose of old batteries promptly and prop- erly. Do not burn or bury them. To test the batteries, touch the black and red test clips together then press . ANODE/NPN CONT and ANODE/PNP light and a tone sounds.
  • Page 10: About Your Tester

    22-330.fm Page 10 Friday, August 6, 1999 12:34 PM ABOUT YOUR TESTER The tester turns on when you press any of its but- tons. When you release the button after testing a component, the tester turns off. TEST POINTS ILLUS...
  • Page 11: Controls And Displays

    22-330.fm Page 11 Friday, August 6, 1999 12:34 PM — Component Slot lets you connect a compo- nent with 2 legs (an axial diode, for example). The tester’s component slots are labeled and +. – — Test Socket lets you connect a component with 3 legs.
  • Page 12 22-330.fm Page 12 Friday, August 6, 1999 12:34 PM — press to check all types of diodes. DIODE — press to check SCRs and TRIACs. — press to check for continuity. CONT — lights to show the anode of a diode ANODE/NPN or the junction type of a transistor.
  • Page 13: Operation

    22-330.fm Page 13 Friday, August 6, 1999 12:34 PM OPERATION To test a device with three connectors, connect it to the , and test sockets or to BASE3 BASE2 BASE1 the black, yellow, and red test clips. To test a de- vice with two connectors, connect it between the –...
  • Page 14 22-330.fm Page 14 Friday, August 6, 1999 12:34 PM • to test a bipolar, JFET, MOSFET, or TRANS IGBT transistor. The tester shows the transis- tor’s base and collector and tests if the tran- sistor is working properly. (The remaining pin is the emitter).
  • Page 15 22-330.fm Page 15 Friday, August 6, 1999 12:34 PM Function/ device Continuity (open) Continuity (shorted) (tester beeps) Transistor, NPN, EBC...
  • Page 16 22-330.fm Page 16 Friday, August 6, 1999 12:34 PM Function/ device Transistor, NPN, B??, open Transistor, NPN, ??B, shorted Transistor, PNP,...
  • Page 17 22-330.fm Page 17 Friday, August 6, 1999 12:34 PM Function/ device Transistor, PNP, ?B?, open JFET, NCHAN, ??G, shorted JFET, NCHAN, ?G?, open JFET, PCHAN, G??, shorted...
  • Page 18 22-330.fm Page 18 Friday, August 6, 1999 12:34 PM Function/ device MOSFET, NCHAN, DGS MOSFET, NCHAN, ??G, open MOSFET, NCHAN, G??, short...
  • Page 19 22-330.fm Page 19 Friday, August 6, 1999 12:34 PM Function/ device MOSFET, PCHAN, GDS IGBT, NCHAN, IGBT,???, ??? no transistor installed...
  • Page 20 22-330.fm Page 20 Friday, August 6, 1999 12:34 PM Function/ device Diode, CATH- ANODE Diode, ANODE- CATH Diode, open or none Diode, shorted...
  • Page 21 22-330.fm Page 21 Friday, August 6, 1999 12:34 PM Function/ device SCR, KGA, logic SCR, KGA, 1 TRIAC, ??? TRIAC, AAG...
  • Page 22: Component/Testing Notes

    22-330.fm Page 22 Friday, August 6, 1999 12:34 PM COMPONENT/TESTING NOTES Continuity Because the tester checks for continuity in both di- rections, it will not respond as described if you connect a good diode. ± A resistor that is less than about 7.1K ohms ( µ...
  • Page 23: Scrs And Triacs

    22-330.fm Page 23 Friday, August 6, 1999 12:34 PM SCRs and TRIACs • The tester cannot test an SCR for a latch-up condition. • The tester might indicate that some types of high-current or power SCRs are TRIACs, or that some bad TRIACs are good SCRs.
  • Page 24: General Rules For Transistors

    22-330.fm Page 24 Friday, August 6, 1999 12:34 PM General Rules for Transistors The tester determines the type of transistor you connected based on the following rules: • If there is a common PN junction to two other leads, the tester tries to find out if the transis- tor is a bipolar or a JFET device.
  • Page 25 22-330.fm Page 25 Friday, August 6, 1999 12:34 PM Caution: Some types of RF-type bipolar transis- tors might be damaged if they are connected incor- rectly to the tester. To be safe, make sure you can identify the device’s pins before you connect it to the tester.
  • Page 26: Jfets

    22-330.fm Page 26 Friday, August 6, 1999 12:34 PM JFETs • If BAD lights when you test a JFET, it is because the JFET failed the MOSFET or IGBT tests. The tester will not detect a JFET that is actually shorted.
  • Page 27: Igbts

    22-330.fm Page 27 Friday, August 6, 1999 12:34 PM • MOSFETs with large forward voltage protec- tion diodes usually register as IGBTs. • If a MOSFET has a protection diode with a forward voltage that exceeds the tester’s test voltages, the tester might show that the MOSFET is bad.
  • Page 28: Care

    22-330.fm Page 28 Friday, August 6, 1999 12:34 PM CARE To enjoy your tester for a long time: • Keep the tester dry. If it gets wet, wipe it dry immediately. • Use and store the tester only in normal tem- perature environments.
  • Page 29 22-330.fm Page 29 Friday, August 6, 1999 12:34 PM SPECIFICATIONS Max. Min. Typical Units Test Voltage 5.25 3.00 4.50 Volts PN Conducting Limit 2.63 1.50 21.25 Volts PN Not 2.64 1.51 2.26 Volts Conducting Limit µ PN Current 525 300.00 450.00...
  • Page 30 22-330.fm Page 30 Friday, August 6, 1999 12:34 PM Buzzer Frequency ........ 2.04 kHz Buzzer Volume ........85 dBA PN Test Time ........10 mSec Display Time ..........1 Sec ± All voltages and currents are Specifications are typical; individual units might vary.
  • Page 31 22-330.fm Page 31 Friday, August 6, 1999 12:34 PM...
  • Page 32 22-330.fm Page 32 Friday, August 6, 1999 12:34 PM (Continued) In the event of a product defect during the warranty period, take the prod- uct and the RadioShack sales receipt as proof of purchase date to any RadioShack store. RadioShack will, at its option, unless otherwise pro- vided by law: (a) correct the defect by product repair without charge for parts and labor;...

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