ECN Forum Forums General Topics of the Trade Non-US Electrical Systems & Trades Basic Electrical Things

Scott,
Thanks a heap for all of them pic's mate!,
just a short question, is it really necessary to bend the tops of the Ladder "strings", over at 90 Degrees?.
The one that I built, had the strings, just pointing upwards, I made heaps of Ozone, but we need it down here.
Regarding the Schematics, we are talking people that have never encountered Electronics, apart from turning thier TV or Stereo on and off, that are looking to pass an Exam to use all available Ham Radio frequencies, all modes.
What I really need is some Diagrams, that explain basic Digital Electronics, I've got all of the Analogue stuff and I have re-written it to make it easier to read.
Digital Radio is becoming more and more common, these days,especially with Packet Radio, I just want to give these people a really good grounding in the basics of Digital Equipment.
Can you help?, Scott.

Hello, Trumpy!

I'll quote some points from your message here.


Not necessary to bend the tops. I just did this to see if the Plasma would go up there and stay. With my older Neon
Transformer, the Plasma was much more stable, and would go upto the bent tops without being quenched.
Sometimes the Plasma would stay up there for at least 10 minutes!
The other Xformer had an output voltage of 15 KV, but that 15000 VAC still pushes only 30 ma. maximum. That
Xformer was rated 450 VA The one I have now is only 9 KV, and is also 30 ma. maximum (270 VA).
If the current was higher (like 60 ma), that would produce a nice stable Plasma @ 9 KV!


The Ozone production is one of the more primary reasons why I run it outside (came close to suffocation!). Love the
scent of the produced Ozone! Has a distinct smell.


I'll gather some things together, then E-mail them to you ASAP. Are you looking for Logic Gate truth tables and
flowchart schematics, along with maybe some IC basics? Would it help if I included some Boolean Algebra basics
too? (like figuring decimal value of a nibble (4 bit) or a Byte (8 bit) string, but staying away from Hex!).
I would imagine you are looking more towards Op-Amp circuitry info, and similar stuff, which I have a nice archive
of schematics which are hard copies (printed and stored on paper). Would be nice to have these schematics in
AutoCAD format, or at least a scanned image - just soooooooooo much work to do this!

Scott35 S.E.T.

BTW, I stumbled across an old post by you asking me about posting info and schematics regarding KWH metering
via CTs. I'll reply to it next.

S.E.T.

I’m saving my nickels for one of these transformers… It may show up on your doorstep some day, Scott. ;-) How far a gap will a 69kV arc need?

General Electric JVT-350 voltage transformer, 240V:69,000V, 4.5kVA, 560 lbs, 42-in H, 37-in W

Bjarney,

I'm drooling over the idea of setting up a Jakes Ladder with that Transformer!!!

Man, that would be a nice fat Plasma!!!

The 9KV Xformer needs an air gap of at least 1/4" to kick the initial starting arc through and rupture the dielectric strength of the air. Once that takes place, the Plasma hops into place. Largest Plasma with the 9KV guy was in the 4" range.

When the air has excessive impurities (more precicely, high concentrations of Salt Water vapor pushed inland from Pacific Hurricanes, etc.) I can get an initializing arc across a 1/2" air gap. Barometric Pressure is normally below 28.8 mb at those times also.

Scott35 S.E.T.

I've always said that I should play around with these HV experiments, but never seem to have gotten around to it! One day I'll really have to spend some time with this fun stuff.

Very distinctive, isn't it? Maybe it's one reason why I always used to like riding on the London Underground when I was a kid. Down in the tubes the ozone contributed considerably to the distinctive odor of the network.

Then I grew up a little and discovered the same ozone produced by the corona from failing EHT insulation in a TV set.

Scott/Paul,
Regarding the Ozone thing, I was just having a joke at the fact that we have a hole in our Ozone layer down here, if you want sun-burn, come down here and experience it.
Scott, please do not go to any great trouble on my account, just do what you can, I'm not going to cry, you know!.

Back in the first part of the 20th century, ozone was considered quite beneficial, and ozone-generators were sold.

Nowadays, people are told that large quantities of O3 aren't good for you, except up in the atmospshere blocking excess UV, of course!

Paul,
So I am told, Ozone, is very bad for the Lungs, causing tissue breakdown in the alveoli.
Are the Ozone generators, that were being sold back then, the same sort of thing as a Negative Ion generator, sold in large amounts during the 1980's-90's?.
My uncle had one, I don't think that it worked properly, I never felt any "refreshing effects" from it.

No, they're not the same thing. Ozone is a molecule comprised of three oxygen atoms instead of the usual two.

A negative ion is an atom which still contains the same protons/neutrons in its necleus but which has one or more extra electrons orbiting it.

For some odd reason, I would not want my digicam within a 2000 feet of this building: http://home1.gte.net/res07cmo/hv/cole/cole.htm

Am I being unnecessarily gun shy?