Elenco Electronic Playground 50-in-1 Experiments - Manual (Page 71)

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1. Adjusting the input to something based on what its
output is doing is an example of __________.
2. A speaker converts electrical energy into __________
__________ variations, called sound waves.
3. An oscillator’s frequency __________ when you add
resistance or capacitance.
4. Sending information through the air using
electromagnetic waves is called __________.
5. Long wires start to act like __________ at high
frequencies.
6. A NOR gate followed by a NOT gate is the same as an
__________ gate.
7. An AND gate followed by a NOT gate is the same as
a __________ gate.
(Answers are on page 5).
TEST YOUR KNOWLEDGE #3
• Check your wiring against the Wiring Checklist and the
schematic, very carefully. Be sure all your wires are
securely in place and not loose. Also make sure the
metal in the wires is only contacting the spring and
wires that it is connected to, and not to any nearby
springs or other wires. Nearly all problems are due to
wiring errors. Also remember that the battery and
electrolytic capacitors have “+” and “–” terminal
markings.
• Be sure you have a good 9V battery. If not sure then try
a new battery.
• Flip your Playground over and examine the
connections on the back side. Every spring should
have a wire from a component connected to it, and the
connections should be secure (not loose). No wires
should be touching any other wires on the back side
(exception: two wires from the antenna are connected
to spring 8 (the antenna).
TROUBLESHOOTING GUIDE
Contact Elenco ® Electronics, Inc. (our address/phone/website is on the back of this booklet) if you further assistance. DO
NOT contact your place of purchase as they will not be able to help you.
Van Valkenburgh, Nooger, and Neville (1993). Basic Electricity. Sams (61041)
Rezurch I. (1996). Electronics Terminology. Sams (67013)
Johnson J. R. (1994). Schematic Diagrams. Sams (61059)
Kamichik S. (1996). Digital Electronics. Sams (61075)
FOR FURTHER READING
(all of these are available through Elenco ® Electronics, Inc.)