CIRCUIT

[Bluechip]

CIRCUIT THINGY

[crueby]

Whats it supposed to be for??
 

[Jo]

Knowing Dave, It a competition to guess 

Jo

[Bluechip]

Whats it supposed to be for??
 

iT'S NOT FOUR ANYTHING ...    There's only one      

Regards

Dave

[Bluechip]

Knowing Dave, It a competition to guess 

Jo

First Prize is a ECLL800

[Jo]

May be he is being pendant-ic 

Jo

[Kim]

Is it a motor control?   The monetary contact switch starts it and supplies power to the relay which then keeps the power flowing till someone pushes the momentary contact STOP button, which interrupts the circuit so the relay opens.  And the FW/REV switch will change motor direction?

But that's likely too obvious.  But it's what I come up with.

Kim

[tghs]

[Jo]

  I know someone who will need to make himself one of those 

Jo

[Roger B]

I remember from long ago in one of the UK electronics magazines a complicated circuit to drive an LED. I was described as a battery eliminator. When the LED went out the battery was eliminated     

[Jo]

I think I have just realised what Dave has started 

Jo

[crueby]

Yeah Jo, looks like a circuit to drive engineers (more) batty...!

[mklotz]

I bought and assembled one of those for a desk ornament.  It makes me smile whenever I flip the switch.

It may be utterly useless but it is a vivid example of design simplicity.  There is, of course, a motor to move the arm and batteries to power it but, beyond those and the switch on the top of the box (DPDT), there is only one SPST switch; no electronic components whatsoever.  Try drawing a circuit diagram for that. 

You can have even more fun if you build two of these boxes and then construct a simple arm that (mechanically) connects the boxtop switches.  As one box turns off it automatically flips the switch on the other which then turns itself off and turns the other on...endlessly.

[Don1966]

CIRCUIT THINGY

I don’t think the  run jog switch will work for jog, it will stop just like pushing the stop push button. So what is the purpose of it?

Don

[Art K]

Hey, I had one of those useless box things, it had a snake that shut the switch off.
Art