The people on your "payroll" (the ones being paid to do this as proof of concept).

The funds are to be used strictly for purchase of components/materials -- the participants are not being financially compensated!

Your explanations of flyback topology may work for the two of you, and the audience

Flyback/(magnetic) energy storage conversion is a 'well explored' technique -- nothing 'theoretic' there...

it is of no help to those that what to enter the 'clique'.

Really, it's not a 'clique' - merely a series of (woefully informal) courses aimed at interested parties in search of a quantitative approach to the subject...

I was trying to explain earlier before be accused of being "senile"

Please re-read the post -- you were accused of feigning senility! In point of fact your conspicuous high degree of intelligence and able-mindedness make your 'antics' all the more frustrating...

The one about using an electric motor driven distributor with no distributor cap to drive an HEI coil was to show an motorhead/ gearhead friend that an ignition system doesn't work like he and you two seem to think it does. He was amazed to see that the coils output was not in separate sparks but a steady stream of sparks,

Although its visual appearance may well be that of a 'continuous arc', the output is, in reality, a 'train' of pulses occurring at a frequency determined by the rate at which the system is triggered (via the 'points' or 'pickup') -- to see this you need merely reduce the AV of said motor... Note: Output at 'stand-still' would indicate oscillation of the triggering circuit (a common occurrence where the pickup is replaced by a large inductance, BTW)...

Just trying to give my own experiences to a conversation of your project I now see was wrong.

Discussion is welcome! - Howbeit such it's a bilateral proposition (meaning we respond to your points and you respond to ours) else it's nothing more than contradiction, personal rancor and aimless bickering...

there may be other things the two of you haven't thought of to create an EHT supply.

There are doubtless many un/under explored approaches -- for all that we've covered 'the basics' on the 'electronics front'... -- Shortbus -please believe it- Much as I'd like to simply switch an induction coil via current-mode PWM and thus capitalize upon the resultant asymmetrical output by way of obviation of rectification - impulse topologies simply do not offer sufficient energy at EHT levels. Such is neither a casual conclusion nor a particularly recondite observation...
The (loaded) output 'burst' of such schemes may be tolerably visualized as an EHT 'spike' (of several hundred ns to one μs duration) followed by an (up to multi-millisecond) 'ringoff' -- most of the energy is vested in said 'ringoff' -- Please note that once 'struck' the arc will persist at much lower EMFs! Thus it is that an induction coil capable of strike distances consistent with hundreds of kV tends to exhibit mean EMFs ≤ 1% peak output...

One that is capable of giving amps of output not mA's .

But again, the energy apparent at EHT levels is miniscule - please consider the following:

So for a peak output of 50kV at 10A under ideal conditions and granting a (generous) 1uS EHT pulse width:
-Peak output energy = 50kV*10A*1us = 0.5J
-Whereas mean output energy = 0.5kV*10A*100ms = 500J

Alternately, via reductio ad absurdum:
A 'flat' DC power supply (which being the objective of this project) capable of supplying even a single Ampere at 50kV must needs handle 50KW (i.e. 50kJ per second) -- Nuff said?

Since there was EHT and Xray power supplies before there was either LOPT's and ferrite core transformers.

--Emphasis Added--

Indeed there were -- and Wimshurst wheels as well, but neither constitute good radiography PSUs let alone versatile, EHT PSUs...

To summarize:
Shortbus -- sincerely; empiricism has an (I daresay critical) place in the evolution of technology -past and present- but for all that, it is as nothing by comparison with concept!

I urge you to please re-read the posts on this subject but this time from a quantitative perspective...

Sincerely, best regards
HP

 

I urge you to please re-read the posts on this subject but this time from a quantitative perspective.

And I urge the both of you to re-read my posts from the perspective of a neophyte in this discipline.

Shortbus I consider myself a nice person and I don't like to treat ppl unfairly!

And I am also considered a nice person, not just by myself but by all that know me. And those that know me also know me also know I never hold a grudge, like you seem to think.

 

I have some other ideas on the disassembling of the LOPT but am now afraid to post them.

 

And I am also considered a nice person, not just by myself but by all that know me.

Hey, @shortbus! I'm certain that I speak for @Aleph(0) as well with my assertion that my Ca. two years' association with you leaves no doubt in my mind that you're a nice guy!

And those that know me also know me also know I never hold a grudge, like you seem to think.

I don't feel you hold a grudge. I did, however, get the impression that you may regard us as out-of-touch 'elitist snobs'? -- Again, I assure you that our insistence that your profession is under-compensated was in no way, shape or form an aspersion upon your judgment! One must do what one must do to survive and, indeed, thrive - My (our) criticism was of the inequalities inherent to the labor market - not you or your choice of profession!

I have some other ideas on the disassembling of the LOPT but am now afraid to post them.

Lemme get back to you on this (when I have more time, next week) -- For now, let me say that I've no doubt whatever that much room for improvement exists throughout the entire disassembly/reassembly process ('handiwork' is most definitely not my 'strong suit') -- That said, the images have been captured and the text composed and 'the show must go on' So... As regards the 'workable' (even if less than optimal) areas I'd just as soon leave good (bad?) enough alone for the nonce -- The problem areas, however (e.g. separation of form and secondary sans breakage of the former and/or damage to the latter) are in dire need of rethinking!

So... please allow me a few days to find time for composition of an illustrated 'statement of the case' including an outline of 'where we've been and what we've tried' such we may all be on the 'same page' moving forward! -- I sincerely look forward to your assistance with this problem should you be so kind as to offer same!

With utmost sincerity
HP

 

@Aleph(0) & @Jazz2C

Less than one week to go! -- Hows it looking on your end?

Best regards
HP

It's going!

So FWIW my text from A0 says her Denali slips and loses drive in R but it can't be the sun shell b/c 2 and 4 work. I hope you're a better decryption geek than me!? I know Mark Levin calls himself Denali but from the sounds of it I'd say she's talking abt a land vehicle? Well that's her excuse for not coming across with the Machletts until tomorrow. OBTW The embedded images work for me too!

 

I did, however, get the impression that you may regard us as out-of-touch 'elitist snobs'? -

You got the correct impression there. But it still won't stop me from helping any way I can. I'm an equal opportunity helper.

 

You got the correct impression there.

I sincerely hope we'll prove otherwise in the course of our ongoing association....

But it still won't stop me from helping any way I can. I'm an equal opportunity helper.

Many thanks! -- We'll be in touch

Very best regards
HP

 

I know Mark Levin calls himself Denali

Ah! Yes! Though I daresay 'The Great One' has no difficulty 'backing-up' whatever!

from the sounds of it I'd say she's talking abt a land vehicle?

--Emphasis Added--

Indeed! Tis the curse of the 4L60E transmission come a callin'

Well that's her excuse for not coming across with the Machletts until tomorrow.

Excuse is right considering the veritable 'fleet' she's accumulated -- @Aleph(0) I expect you'll advise that the delay is down to the requirement of transferring the load to another vehicle? But then, at risk of appearing 'overbearing', I assert that the trip might quite adequately have been made sans backing...

So like I said on thread it works well if u wait for everything to load so I say plz just move tutorial posts down and make post 1 a warning for readers to give pics a chance to load b4 scrolling down!

I'll be delighted to heed your suggestion as soon as you make room via deletion of post #3 from the Tutorial Proofing thread!

OBTW The embedded images work for me too!

Pleased to hear it! -- Now if I might trouble both you and @Aleph(0) to remove your posts from the proofing thread I put it in 'order'


Best regards
HP

 

Ah! Yes! Though I daresay 'The Great One' has no difficulty 'backing-up' whatever!

ROFLMAO!

Pleased to hear it! -- Now if I might trouble both you and @Aleph(0) to remove your posts from the proofing thread I put it in 'order'

Oops! It's a done deal!

HP Plz send me a copy of the BB code for the embedded images version! I can make a Works presentation for ppl having difficulties with bandwidth and device issues!

FYI Step 2-3 displays the wrong pic, it's a duplicate of the preceding.

 

FYI Step 2-3 displays the wrong pic, it's a duplicate of the preceding.

Corrected - Thank you! -- Further 'combing' of the Proofing Thread for similar errors will be greatly appreciated!

HP Plz send me a copy of the BB code for the embedded images version! I can make a Works presentation for ppl having difficulties with bandwidth and device issues!

Will do as soon as @Aleph(0) gets 'round to removing her post on the Proofing Thread...

Best regards and again, many thanks!
HP

 

Indeed! Tis the curse of the 4L60E transmission come a callin'

What "curse" would that be?

 

What "curse" would that be?

Succinctly: Da curse of reverse -- Owed, not uncommonly, to abrupt fracture/striping of the 'sun shell' on 1'st to 2'nd (and, less frequently, 3'rd to '4'th) up-shifts...

Re: @Aleph(0)'s case: Inasmuch as the 'sun shell' is intact (as witnessed by correct operation in 2'nd and 4'th) and in view of the fact that the reverse/low clutch is (yet) 'sufficient' (as demonstrated via proper 'first gear' operation) -- It'll be low 'apply servo' pressure owed to leaky seals (another common problem) -- Granted! Installation of a 'hardened' 'reman' (i.e. a remanufactured transmission featuring remediatian of OEM 'problem areas') is no 'biggy' -- Still... Most shops require more than one business day to complete said service - which being unacceptable where the vehicle is loaded with sensitive and/or 'theft-worthy' cargo

But hey! I'll say this for the 4l60e -- Even catastrophic failure seldom leaves one without drive in at least one forward 'gear' (typically 1'st and 3'rd which may be manually selected) IMO true 'limp-ability' more than compensates the privations of 'entry-level' trucks! - Hence my strong preference for GMC over BMW and Mercedes (where light trucks/SUVs are concerned)

Best regards
HP

Edited for expansion of brevity

 

HP Plz send me a copy of the BB code for the embedded images version! I can make a Works presentation for ppl having difficulties with bandwidth and device issues!

FWIW I've posted the requested text files to my Blog HERE

Inasmuch as said files do not contain the images themselves (but merely references thereto) I've likewise posted the the full 'Rich Text' version (HERE and HERE)

I then downloaded my blog and copied the resultant file "Blog(1).zip" to your cloud server...

Hope to have been of assistance!

Best regards
HP

 

Wow, i must be lucky and know some very lucky people. I own a 1999 3/4 ton chevy with over 100K on it with no problems. And have a friend with a 2004 3/4 ton that had 400k on his with no problems at all.

 

Wow, i must be lucky and know some very lucky people. I own a 1999 3/4 ton chevy with over 100K on it with no problems. And have a friend with a 2004 3/4 ton that had 400k on his with no problems at all.

That doesn't tell me you're lucky... but rather that you're light-footed on your precious truck, and that you like to take good care of your things... good for you!

 

That doesn't tell me you're lucky... but rather that you're light-footed on your precious truck, and that you like to take good care of your things... good for you!

Yeah your right. Got to make what I have last. But both of us take our trucks off road. Mine to cut and haul ~5 or more cords of fire wood from the woods. And his driving to Colorado twice a year and into the woods hunting. Neither truck has ever been babied.

 

... Neither truck has ever been babied.

You mean your truck doesn't look like this? ... bummer :

​

​

 

Wow, i must be lucky and know some very lucky people. I own a 1999 3/4 ton chevy with over 100K on it with no problems. And have a friend with a 2004 3/4 ton that had 400k on his with no problems at all.

Hey @shortbus -- No disparagement intended GM vehicles whatever! - 'Euro-toys' are ok for casual touring but when it's critical it's GM all the way! -- In point of fact I was involved in (and walked away from) a highway-speed collision a few weeks ago (in a little Chevrolet V6 sedan) - Had I been driving one of my 'toys' I suspect conduction of this conversation would require exchange of your keyboard for a Ouija board...

You mean your truck doesn't look like this? ... bummer :

View attachment 136522​

While not wishing to sound a 'killjoy' - the high-clearance is negated by the axles - Then too it's center of gravity is wayyy too high for practical off-road use...


Gotta run!

Very best regards
HP

 

Then too it's center of gravity is wayyy too high for practical off-road use...

Whatcha talk'n about?... the center of gravity is exactly where it should be. Above the bikini line, right at belly button...

 

Whatcha talk'n about?... the center of gravity is exactly where it should be. Above the bikini line, right at belly button...

Use of the driver/presenter as a human 'yard stick' -- Novel that?

For all that, I respectfully disagree inasmuch as said reference roughly corresponds to the plane of the frame-rail -- IMHO the center of mass lies well above said plane -- My $.02 and likely worth as much

Very best regards
HP