pfofit
Active Member
The "complete" helps a bit.
You are way overkill on all those gates.
Just place a 12 volt relay across each solenoid and use a contact from each relay to be SW1 and SW2 for the 4511 schema I edited earlier. The two contacts and a couple diodes and a transistor with decode the solenoid selections to BCD, whether it is done manually or automaticly.
Since you have 12 volts, use that for the 4511 circuit instead of five volts. If you do use 5V then swap the segment resistors to 180 ohms or they will be mighty dim.
A tip41 can handle 6 amps so a little extra from a dinky 12volt relay is nothing against the solenoids.
cheers
You are way overkill on all those gates.
Just place a 12 volt relay across each solenoid and use a contact from each relay to be SW1 and SW2 for the 4511 schema I edited earlier. The two contacts and a couple diodes and a transistor with decode the solenoid selections to BCD, whether it is done manually or automaticly.
Since you have 12 volts, use that for the 4511 circuit instead of five volts. If you do use 5V then swap the segment resistors to 180 ohms or they will be mighty dim.
A tip41 can handle 6 amps so a little extra from a dinky 12volt relay is nothing against the solenoids.
cheers
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