Elenco Electronics K-20 Assembly And Instruction Manual Download Page 1 | Manualshive

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NERVE TESTER KIT

MODEL K-20

Assembly and Instruction Manual

Elenco Electronics, Inc.

Copyright © 1989 Elenco Electronics, Inc.

Revised 2002 REV-E 753220

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Summary of Contents for K-20

Page 1: ...NERVE TESTER KIT MODEL K 20 Assembly and Instruction Manual Elenco Electronics Inc Copyright 1989 Elenco Electronics Inc Revised 2002 REV E 753220...

Page 2: ...Symbol Description Color Code Part 1 R1 470W 5 1 4W yellow violet brown gold 134700 1 R2 47kW 5 1 4W yellow violet orange gold 154700 SEMICONDUCTORS Qty Symbol Description Part 1 SCR1 SCR C106B 319106...

Page 3: ...ker generator The heart of this circuit is the transformer We shall review the operation of a transformer to understand the circuit A transformer has two or more windings around an iron core If a chan...

Page 4: ...ponent Lead Solder Soldering Iron Drag Foil 1 Solder all components from the copper foil side only Push the soldering iron tip against both the lead and the circuit board foil 2 Apply a small amount o...

Page 5: ...older a wire to each side of the double sided PC board Insert the other ends of the wires in the holes marked P1 Solder and cut off the excess leads Figure B Bend the 9 bare wire into the shape as sho...

Page 6: ...dges formed A solder bridge may occur if you accidentally touch an adjacent foil by using too much solder or by dragging the soldering iron across adjacent foils Break the bridge with your soldering i...

Page 7: ...more windings 6 A _______________ current in the primary winding will produce voltage in the ___________ winding 7 The voltage in the secondary winding is equal to the primary voltage times the ratio...

Page 8: ...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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