555 relay current reducer

Yes, mentioned in another recent thread, precursor to this one.

Cheers, James Arthur

Sounds about right.

Agreed, and relays too, for that matter.

There's a pile of gold out there from the survival-types for the first relay-based EMP-safe web-browsing laptop able to survive Iranian nukes.

:-)

Cheers, James Arthur

John... Please, please, please, let's not go there again.

George H.

et

It's not John guaranteeing. Most *relays* are guaranteed (by their makers), etc., etc. Not by John.

Wouldn't one fall *into* a pitard (one's own or otherwise), rather be hoist up?

Grins,

James Arthur

Oh please yes! Let's debate the meaning of infinity, ad infinitum!

Vital follow-ups: Isn't Buzz Lightyear's catchphrase false advertising? Where's the outrage?

And then we can quibble over whether latching relays actually latch...

Cheers, James Arthur

I think Fields has gone senile on us... he just won't learn that an unfed troll gathers no podium. ...Jim Thompson

Hmm is that a countable infinity? Or uncountable.... (I'm not sure I have enough time for an uncountable infinity :^)

George H.

And here I was thinking it was a really dumb but vicious dog...

--sp

A graduate student at Trinity computed the square of infinity but it gave him the fidgets to write down the digits so he dropped math and took up Divinity

--sp

Chicken!!!!

I posted a cute little circuit for discussion, as I often do. You whined about me (not it), as you always do.

And you don't seem to be interested in relay behavior, not enough to do a little research and actually contribute.

I wonder if there is any DC em relay that isn't guaranteed to hold closed at 50% of rated coil voltage. I've never seen one.

Those flipflop oscillators and one-shots are cute. Do you think they're reliable?

I've made one-shots from flops with feedback delays from Q or Qbar into the clear input. Classic TTL flops with RC delay didn't usually work: the flop hung in some mid-logic-level state. It usually works with short delays in CMOS and ECL.

Some higher-order delay, RLC or an actual delay line, is safer, but it's hard to get a millisecond-range delay that way.

A few gates make a nice delay line here, but not milliseconds.

I must apologize for inciting this diversion.

My input didn't have anything to do with relays. I commented on COMMUNICATION and the use of the word "guarantee" to describe something clearly not guaranteed in the general case.

I have no quarrel with the concept of reduced hold-in current. "Look it up" was a more helpful statement.

I even misquoted my own favorite nonsense newspaper ad. The correct nonsense ad text was: "Up to 50% off or more"

The correct phrase is hoist with, not on:

The meaning is to hurt one's self while intending to hurt others.

"For tis the sport to have the enginer Hoist with his owne petar".

So "engineer" was in use in 1602. No mention of relay coils.

That bites.

--ja

Depends. Is that an African, or a European infinity?

Cheers, James Arthur