First Stupid Question of the Year.

[throbscottle]

He mentions "boxes full of TTL/CMOS stuff" so hopefully he's got the CMOS equivalents 4510 or the more advanced 4029 for the counter, 4511 for the converter.
Oh, look: https://www.edutek.ltd.uk/Tutorial_Pages/BCD_Counter_4510.html

 

[Les Jones]

Hi ts,
If he has those chips it would mean that the only significant current consumption would be from the displays. Your link in post #41 will be good for the OP to read so he has some understanding of what he is doing rather than just building it cook book fashion. By the way. I tried the method of pre loading the counter to 5 that I suggested in post #35 and that method also works.
One other question for the OP. Is the 6 way switch single pole ? If not how many poles does it have ?

Les.

 

[captainkirksdog]

Hi Guys,
Sorry about not being here. Was trying for seven months to protect irrigation pump and should have paid more attention to drinking-water pump and well. We are in the coldest winter since 1954. Been -21 below F. That's 50+ degrees below freezing. My well-house heater just couldn't keep up. Didn't know. Woke up 4 days ago & no water!! Froze everything. Got new parts and been replacing stuff that exploded. Lotta work. Hands hurt, eyes very tired. (Short sentences here because only got a few minutes.)
As far as ICs, I can get what I need. Have a lot of LS stuff. Some ACT/HCT, as well. Haven't had time to look yet. Some CMOS. Just don't ask me what I might need. I don't have a clue. As far as making it ALL digital; got no problem with that. Even said I might have to go that way in Original Post.
Gotta split. Be here in & out. Will try to answer what I can. Thanks for your help. <ckd>

 

[spec]

Hi Guys,
Sorry about not being here. Was trying for seven months to protect irrigation pump and should have paid more attention to drinking-water pump and well. We are in the coldest winter since 1954. Been -21 below F. That's 50+ degrees below freezing. My well-house heater just couldn't keep up. Didn't know. Woke up 4 days ago & no water!! Froze everything. Got new parts and been replacing stuff that exploded. Lotta work. Hands hurt, eyes very tired. (Short sentences here because only got a few minutes.)
As far as ICs, I can get what I need. Have a lot of LS stuff. Some ACT/HCT, as well. Haven't had time to look yet. Some CMOS. Just don't ask me what I might need. I don't have a clue. As far as making it ALL digital; got no problem with that. Even said I might have to go that way in Original Post.
Gotta split. Be here in & out. Will try to answer what I can. Thanks for your help. <ckd>

Wow, and I was complaining about having to change a faulty fire alarm yesterday, especially when I couldn't find my star screwdriver.

spec

 

[throbscottle]

There was me wishing it would freeze here then there wouldn't be all the mud and muck. I wouldn't want it that cold though! Brrrrrrrr...