Results tagged #Combination Lock in Circuits
Simple Electronic Combination Lock
The following diagram is a very easy and simple electronic combination lock based on IC LS7220. Component Part List: C1 = 1uF 25V C2 = 220uF...
Project: PC Power-on Combination Lock? |? O J Ford
I designed the PC Power-on Combination Lock (PCPCL) last year for my GCSE Systems & Control project. The exam board stated that we must desi...
Simple Combination Lock
This simple combination lock accommodates codes from 1-9 digits long, with the only restriction being that the same digit cannot be used twi...
Simple combination lock
This experiment may be built using only one 8-position DIP switch, but the concept is easier to understand if two switch assemblies are used...
Simple Combination Lock
This simple combination lock accommodates codes from 1-9 digits long, with the only restriction being that the same digit cannot be used twi...
Electronic Combination Lock using IC LS 7220
This is the circuit diagram of a simple electronic combination lock using IC LS 7220. This circuit can be used to activate a relay for contr...
Combination Lock With Auto Reset
This circuit function for combination lock with auto reset. 4 Digit Enter Combination, C-Mos Design, Low Standby Power, and 9 to 15 Volt Ope...
Electronic Combination Lock Circuit using IC LS 7220
This is the circuit diagram of a simple electronic combination lock using IC LS 7220. This circuit can be used to activate a relay for contr...
Electronic 7-Digit Combination Lock
This 7-digit combination lock can be easily hard-wired for any combination that you choose. The circuit uses a 4-bit, divide-by-8 Johnson co...
combination lock in electronic
This is the circuit diagram of a combination lock electronic simple using CI LS7220. This circuit can be used to activate a relay to control...
electronic combination lock circuit
a simple electronic combination lock using IC LS 7220. This circuit uses a relay for controlling any type of device when the combinations of...
electronic combination lock LS7220
The following diagram is a very easy and simple electronic combination lock based on IC LS7220. Component Part List: C1 = 1uF 25V C2 = 220uF...
Simple Electronic Combination Lock circuit diagram
This could be the circuit diagram of a easy electronic combination lock by using IC LS 7220. This circuit may be applied to activate a relay...
Electronic combination lock
Switches SI through S5 must be operated in rapid sequence to operate the lock. They can be any numbers on a 10-button switch pad...
Electronic combination lock
When button S12 (#) is pressed, a positive voltage fed through Rl appears at the base of transistor Ql, turning it on. When Ql is conducting...
Three-dial combination lock
Here's an effective little combination lock that you can put together in one evening's time. To open the lock, simply dial in the correct co...
4 switch combination Combination Lock
This circuit is very basic to build. To open a lock which is connected to the K1 Load, you must press each momentary switch in the correct s...