Worst hobby construction project of all time?

[Ralph Wade Phillips]

Howdy!

Hehe! Detecting gravity waves takes a bit more than an oscillating
opamp, as you're no doubt well aware. :-D

Oh, I dunno. Pick the oscillating opamp up, hold it in the air, and
then release the hold.

It'll detect the gravity waves just fine, thank you B)

RwP

 

[AZ Nomad]

Caver's wrist sundials also do rather well.

For other April suff, see http//www.tinaja.com/glib/marcia.pdf

www.tinaja.com == www.microsoft.com
wierd.

 

[Tim Williams]

Oh! I've got one...
I seem to remember one Electronics Now (or was it Poptronics by then?) where
they wrote an article for a real (i.e., spark-excited) Tesla Coil, I think
the kit was from Information Unlimited (you know, the ad you looked at in
the back of the same magazine and just gazed in wonderment at the fanciful
gadjets available..).

But, on the schematic, somehow, they managed to *short* the mains supply
wires! I hope no one tried to build it exactly to plans there...

Tim

 

[Don Lancaster]

www.tinaja.com == www.microsoft.com
wierd.

Musta missed a colon.

Try http://www.tinaja.com/glib/marcia.pdf

--
Many thanks,

Don Lancaster voice phone: (928)428-4073
Synergetics 3860 West First Street Box 809 Thatcher, AZ 85552
rss: http://www.tinaja.com/whtnu.xml email: [email protected]

Please visit my GURU's LAIR web site at http://www.tinaja.com

 

[Jeff L]

Oh! I've got one...
I seem to remember one Electronics Now (or was it Poptronics by then?) where
they wrote an article for a real (i.e., spark-excited) Tesla Coil, I think
the kit was from Information Unlimited (you know, the ad you looked at in
the back of the same magazine and just gazed in wonderment at the fanciful
gadjets available..).

But, on the schematic, somehow, they managed to *short* the mains supply
wires! I hope no one tried to build it exactly to plans there...

Tim

They also had a class D audio amp that was not isolated from the mains
(regulated power by phase angle control to the filter caps), and had some
nasty voltages present to the inputs and outputs and other functional
problems.

 

[AZ Nomad]

Richard Henry wrote:

Reminds me somewhat of some power supply connectors I've gotten from
Rad Shack in recent years. Two pins protrude out of a circular plug.
Along the side of the plug, exactly HALFWAY between the two leads, a
"+" is clearly marked.

IIRC, It's got nothing to do with the two leads. It lines up to a marking
on the adapter plug you plug the two pins into.

 

[Mark Zenier]

[big snip]

They also had a class D audio amp that was not isolated from the mains
(regulated power by phase angle control to the filter caps), and had some
nasty voltages present to the inputs and outputs and other functional
problems.

Oh, I remember a class D audio amp that didn't have an output filter
and you were supposed to connect your speakers with coax. I think
that was in Electronics Now.

Mark Zenier [email protected]
Googleproofaddress(account:mzenier provider:eskimo domain:com)

 

[redbelly]

IIRC, It's got nothing to do with the two leads. It lines up to a marking
on the adapter plug you plug the two pins into.

I still thinks it's a dumb way to do it. That marking should have
***everything** to do with the two leads.

 

[Duke McMullan N5GAX]

Oh! I've got one...
I seem to remember one Electronics Now (or was it Poptronics by then?) where
they wrote an article for a real (i.e., spark-excited) Tesla Coil, I think
the kit was from Information Unlimited (you know, the ad you looked at in
the back of the same magazine and just gazed in wonderment at the fanciful
gadjets available..).

Yeah . . . IU has some neat toys. One of Bob's recent books (Electronic
Gadgets for the Evil Genius) contains a wide variety of delightful devices,
many seriously dangerous.

But, on the schematic, somehow, they managed to *short* the mains supply
wires! I hope no one tried to build it exactly to plans there...

That's a safety feature! TCoils are dangerous, particularly the primary
circuit.


d