This product is obsolete/discontinued and no further stocks are available. Please see alternatives in the category links above.
This is really three kits in one. In fact it comprises one each of our timer boards 3152, 3085_2 and 3085_3.
Each one is supplied complete with all components and a separate PCB. Each has a relay output (except 3085_3 which has a 12Vdc output). So you can either purchase all three timers in the one pack (order code 3085) or individually (see 3152, 3085_2 and 3085_3 for details).
The first circuit is a traditional 555 timer circuit but also shows how to extend the timing period to the maximum. The second uses a 555 timer IC to switch a binary counter for time periods from seconds to years! The third circuit uses an electrolytic capacitor's discharge characteristics to time a period from about 2 seconds to 6 minutes.
Timing periods for all three circuits can be altered by substituting different component values (not supplied). Please refer to the individual kits for full product descriptions.
This three-in-one kit makes a good introduction to timer circuits. Full details are provided.
SpecificationsSupply Voltage | Regulated 10 - 15Vdc |
Current consumption | <1mA standby, <35mA active (no load) |
Suitable Power Supplies | |
Output Signal | 12Vdc, 500mA max load (see text) |
Dimensions (mm) | ~ 45W x 60L x 20H |
Board Connections | Screw terminal blocks |
Product Formats | SELF-ASSEMBLY Electronic Kit (KT) Product Formats Info |
Documentation | User Manual |