(9 Reviews)
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Buy 10 to 20 of these every semester for use in the "soldering" section of my basic electronics class. Very simple to construct but conveys the basics of p.c. board soldering and part placement. Kit has always worked and is now considered to be manditory for successful completion of class. In the semester ending in December, the Red and Green LED's give a nice Christmas touch.
This kit is easy to assemble. It uses a 555 but the circuit is not the usual astable design (with a resistor between pins 8 and 7 and a resistor between pins 7 and 6 & 2). Your design has a resistor between pins 8 and 6 & 2 and a resistor between pins 6 & 2 and 7.
Why is the design different?
Can I use the regular formulas to calculate frequency and duty cycle?
Thank you for nice product!!!
This kit works well for meeting several of the electronics merit badge requirements. Scouts will learn about the components, how to solder, and circuit operation.
| 100 + | $0.40 each |
| 100 + | $0.15 each |
| 10 + | $3.70 each |
| 100 + | $0.10 each |
| 1000 + | $0.08 each |
| 100 + | $0.20 each |
| 500 + | $0.18 each |
| 1000 + | $0.14 each |
