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[Blackrat]

I feel the need to explain what I meant with curious signal transfer, although I doubt I can explain it well, and there’s not too many who’d get it even if I could

So we had a relay system that took a supply voltage of standard 230VAC. It used rectifiers and relays to send forward either the positive or negative half wave, or both, or neither. Then the receiver had another set of relays to use those waves.

So, with a standard single phase line it created basically a 2-bit binary control, with 4 distinct functions. This was created in the 70’s and frankly, I found it ingenious.

 

[Aeson]

230 or thereabout with a freq of 25hz. It was half wave of our standard 50hz 230V. Enough to induce a muscle spams.

Because I can.

 

[Aeson]

I found out a childhood friend passed away last night. After having trouble breathing for a week he went to the hospital. He had a heart attack. He died at the hospital. I don't know all the details. He wasn't even 50 yet. That's way too young to die, it's definitely too young to die of a heart attack.

 

[Ulfgeir]

I found out a childhood friend passed away last night. After having trouble breathing for a week he went to the hospital. He had a heart attack. He died at the hospital. I don't know all the details. He wasn't even 50 yet. That's way too young to die, it's definitely too young to die of a heart attack.

My condoleances.

 

[ScottDeWar_jr]

230 or thereabout with a freq of 25hz. It was half wave of our standard 50hz 230V. Enough to induce a muscle spams.

Well, it is still 50 hz, its just a positive or negative pulse at 50 hz

 

[ScottDeWar_jr]

I feel the need to explain what I meant with curious signal transfer, although I doubt I can explain it well, and there’s not too many who’d get it even if I could

So we had a relay system that took a supply voltage of standard 230VAC. It used rectifiers and relays to send forward either the positive or negative half wave, or both, or neither. Then the receiver had another set of relays to use those waves.

So, with a standard single phase line it created basically a 2-bit binary control, with 4 distinct functions. This was created in the 70’s and frankly, I found it ingenious.

I'd have to see the schematics on this

 

[Blackrat]

I'd have to see the schematics on this

Hmm, wonder if the schematics still are in the archives . That system was dismantled and modernised a few years back. I have to go digging once I’m back to work from vacation.

 

[Blackrat]

Well, it is still 50 hz, its just a positive or negative pulse at 50 hz

Right, so it is... It’s a pulsing 50hz instead of ”clean wave” 50hz... Shorted my brain yesterday or something.

Well, hurt anyway, and I had to get an ecg done. Didn’t cause any more problems than what I already had with my heart though, lucky me.

 

[ScottDeWar_jr]

I was shocked by 430 volts dc back when I was in the military. Not pleasant at all.

 

[ScottDeWar_jr]

This device almost sounds like an early form of square generator.