Related Manuals for Elenco Electronics CS-440
Summary of Contents for Elenco Electronics CS-440
- Page 1 CAPACITANCE SUBSTITUTION BOX MODEL CS-440 / K-38 Assembly and Instruction Manual Elenco Electronics, Inc. Copyright © 1989 Elenco Electronics, Inc. Revised 2003 REV-I 753440...
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Page 2: Parts List
The Capacitance Substitution Box is a convenient instrument in determining the desired capacitance values in circuits under design or test. The values selected for your capacitance substitution box were determined to be the most commonly used in modern solid-state circuits. The values are from 100pF to .1mF in 24 steps. -
Page 3: Parts Identification
PARTS IDENTIFICATION Switch PC Mount 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. Some capacitors may have their value printed in the following manner. - Page 4 CONSTRUCTION Introduction The most important factor in assembling your CS-440 Capacitance Substitution Box Kit is good soldering techniques. Using the proper soldering iron is of prime importance. A small pencil type soldering iron of 25 - 40 watts is recommended. The tip of the iron must be kept clean at all times and well tinned.
- Page 5 ASSEMBLY INSTRUCTIONS Begin the PC board assembly with the 100pF capacitor placed in position R1. Be sure to identify the correct value. Bend the leads to fit. Place the capacitor into the PC board with the leads coming out on the copper foil side. Solder into place and clip off the excess leads.
- Page 6 SW3 - PC Mount Switch Mount SW3 in the place shown on the PC board. Solder into place. Red Test Lead Black Test Lead Cut off 1 1/2” of wire off of both the red and black wires (SAVE them for later use). insulation off both ends of the 10 1/2”...
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Page 7: Schematic Diagram
Installation of Knobs without Capacitance Meter If a capacitance meter is not available, turn both switches so that the wiper contact is in the position shown in Figure 5. Start with switch SW1, follow the copper run on the PC board from the lug in contact with the wiper to the 680pF (R7) capacitor, to be sure that the switch is set in the proper position. - Page 8 Elenco Electronics, Inc. 150 W. Carpenter Avenue Wheeling, IL 60090 (847) 541-3800 http://www.elenco.com e-mail: elenco@elenco.com...