Roulette circuits 40 years old

Quote from DAI-80er on August 16, 2025, 1:59 pmHello to everyone who is interested...
Please allow a few words to explain my issue:
By profession I never had anything to do with electronics.
But since childhood I was interested. Build some simple Things.
And about 40 years ago I built a Roulette Game.
My wife was not overly enthusiastic about it because the
big thing (70x70cm) lay on our kitchen table for some month.
I designed it with little 6 Volt lightbulbs behind
a grafical drawing on translucent paper between 2 glass plates.
Controlled it analog/digital with TTL-logic/Transistor/Diode circuits.About 10 years ago, to stay fit with electronics,
I replaced the light bulbs with LEDs and
changed the analog power supply with a switching power supply.
Tried a few times, everything seems to work.
Put the whole thing into the cellar again.Now, just out of the cellar, it does not work flawless anymore.
I found simulIDE some time ago and I am enthusiastic about
this awesome "toy" for an almost 80 years old guy interested in electronics
and I started to built my old Roulette Game in simulIDE.
And after some time the first circuit (from 4) works just fine.
But on the other circuits are some parts which I have not found
in simulIDERotary switch (manually) (Not so Important)
IC HD7420P
IC SN29764/LM1017
IC SN7413May be someone can kindly add some of the missing things to the simulIDE components.
I know that the whole thing would be much simpler to make with Ardu or ESP
but where would the fun be then ???Thanks for your patience
Hello to everyone who is interested...
Please allow a few words to explain my issue:
By profession I never had anything to do with electronics.
But since childhood I was interested. Build some simple Things.
And about 40 years ago I built a Roulette Game.
My wife was not overly enthusiastic about it because the
big thing (70x70cm) lay on our kitchen table for some month.
I designed it with little 6 Volt lightbulbs behind
a grafical drawing on translucent paper between 2 glass plates.
Controlled it analog/digital with TTL-logic/Transistor/Diode circuits.
About 10 years ago, to stay fit with electronics,
I replaced the light bulbs with LEDs and
changed the analog power supply with a switching power supply.
Tried a few times, everything seems to work.
Put the whole thing into the cellar again.
Now, just out of the cellar, it does not work flawless anymore.
I found simulIDE some time ago and I am enthusiastic about
this awesome "toy" for an almost 80 years old guy interested in electronics
and I started to built my old Roulette Game in simulIDE.
And after some time the first circuit (from 4) works just fine.
But on the other circuits are some parts which I have not found
in simulIDE
Rotary switch (manually) (Not so Important)
IC HD7420P
IC SN29764/LM1017
IC SN7413
May be someone can kindly add some of the missing things to the simulIDE components.
I know that the whole thing would be much simpler to make with Ardu or ESP
but where would the fun be then ???
Thanks for your patience
Uploaded files:
Quote from arcachofo on August 17, 2025, 6:16 pmHi.
I think you can use some alternatives:
- Rotary switch: Use a Switch DIP and configure:
Exclusive
Common Pin- IC HD7420P: You can use 2 And Gates, configure:
Input Size = 4
Invert Outputs.
Input Low to High = 1.4 V
Input High to Low = 1.4 V- IC SN29764/LM1017: You can use 2 OpAmps.
- IC SN7413: You can use 2 And Gates, configure:
Input Size = 4
Invert Outputs.
Input Low to High = 1.7 V
Input High to Low = 0.9 V
Hi.
I think you can use some alternatives:
- Rotary switch: Use a Switch DIP and configure:
Exclusive
Common Pin - IC HD7420P: You can use 2 And Gates, configure:
Input Size = 4
Invert Outputs.
Input Low to High = 1.4 V
Input High to Low = 1.4 V - IC SN29764/LM1017: You can use 2 OpAmps.
- IC SN7413: You can use 2 And Gates, configure:
Input Size = 4
Invert Outputs.
Input Low to High = 1.7 V
Input High to Low = 0.9 V

Quote from DAI-80er on August 18, 2025, 12:33 pmHello Arcachofo and thanks for your really quick answer.
Yes, I will certainly try your suggestions, but it may
take some time.
Last time I forget to send the overview, see Picture.
I will let you know about my progress.
Hello Arcachofo and thanks for your really quick answer.
Yes, I will certainly try your suggestions, but it may
take some time.
Last time I forget to send the overview, see Picture.
I will let you know about my progress.