Deleted member 115935
- Joined Dec 31, 1969
what is a " spiritual potential " please.This is my paranoia but I think maybe the ground of the electricity is isolated from Earth ground creating a voltage potential or some kind of spiritual potential even with the pipes of the building. If this is the case I have to use my reasoning to resolve the problem and then when I resolve the problem mentally a transfiguration will occur and maybe the clock will start functioning properly instead of blindly adding bypass capacitors because none of us know the problem for SURE. I really don't want to do anything in haste. If you choose to ignore me I don't blame you.
Why do you have capacitors on the mains to ground ?What if I fused both 0.1 UF capacitors to ground instead of using one fuse for both, would it be safe then? I am worried about a neutral to live side short through both capacitor of the 12V power supply.
I don't think there's any confusion it's just that I didn't add plugs and sockets but that the wires are soldered to the boards without plugs and sockets. What I didn't have is where the am/pm indicator input goes. The am/pm indicator inputs of the diodes of the AND gate (on the clock extras board) go to logic output 2 of the units cd4510 counter and logic output 1 of the tens counter of the modulus 12 counter. Although I'm not sure because I'm having trouble thinking of how I wired it.You have items marked and look like plugs / sockets on the schematics,
you say these a wires ?
can you share how these are wired together please as this is fundamental to understanding the design,
Dick, you mean that if the ground was lifted somehow then there would be danger - I don't see your logic. I plan to use two fuses for each of the two capacitors going to ground if there's a surge. If ground was disconnected through the fuses there wouldn't be a hot level to the chassis. Am I right?The fuse belongs in series with the Line. This is for your safety. Please never fuse a ground.
No.If ground was disconnected through the fuses there wouldn't be a hot level to the chassis. Am I right?
I'm sorry about the mistake of the power supply but I think the reason I was incorrect and confused is because they're using black magic on me probably. I will now try to upload the schematic of the power supply, the external 12V power supply right now but I had a problem finding the folder that has the schematic on my tablet. I'm worried that the 0.1uF 200 volt capacitors could short because of line Spike voltages so I think I need a fuse on each capacitor. There is a fuse going to the 10 ohm resistor of the transformers primary. There is a 0.5 amp fuse also going to the input of the 5.6V regulator on the clock box and there is a coaxial jack on the box for that input.
View attachment 247109
I don't think there's any confusion it's just that I didn't add plugs and sockets but that the wires are soldered to the boards without plugs and sockets. What I didn't have is where the am/pm indicator input goes. The am/pm indicator inputs of the diodes of the AND gate (on the clock extras board) go to logic output 2 of the units cd4510 counter and logic output 1 of the tens counter of the modulus 12 counter. Although I'm not sure because I'm having trouble thinking of how I wired it.
I assume we have common knowledge and you would know how the boards are connected andrewmm. The schematics are intricate and it would be difficult to trace. It seems that you're offended if I appear to be a teacher but I'm willing to learn from you all, you should do the same. I have the 0.1uF capacitors because there appears to be an anomaly that has to be suppressed that is unknown and you all have failed to identify what that is. The 10 ohm resistor is to suppress large current spikes in conjunction with the capacitor to neutral and it eases the inductance load of the transformer at startup which may have caused sporadic operation of the clock. The capacitors are not safety capacitors because I don't have them. I put two fuses on the two capacitors to ground instead of one fuse for both and I don't see any danger that would be happening if the capacitors were to short. The fuses would blow and no high voltage would go to the chassis - I have an aluminum chassis.
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by Jake Hertz
by Jake Hertz