UTC HA-100X

[CJ]

when will the torture stop!    ???    what is going on here! 


is the world coming to an end? 

well, i needed a victim to try my new xfmr dissetor spread sheet thing a ma bobber out on, over?

do i hear any complaints?

questions?  like, didn't you already take apart about 17 of those ha 100 x's already?

yes, but now we Really have it together, no sayin? 

here is your apetizer, the main entree will take a moment, since you ordered it Well Done! 

i seen the needle drill bit and the damage done... ;D

http://i36.tinypic.com/maxw13.jpg

turn up the heat!

http://i33.tinypic.com/2ez441z.jpg

i thought this was a wireless transformer, wth...?    :-\

http://i36.tinypic.com/2wezxuo.jpg

great godfrey, horror of  horrors, this binding drill bit almost torched my transformer!  :-[

but since i preheated the can, it pushed the dang thing right out like a new born opium package>
http://i38.tinypic.com/2wcffgz.jpg

this was the cleaneast removal, thanks to the "twist -o bind bits" from osh, 

http://i38.tinypic.com/313ir8j.jpg


hey look,the input and outputiron for the LA2a all on the front page, how spooky is that? 

 

[CJ]

i forgot all about the copper foil inside these things...

http://i33.tinypic.com/6tk3rr.jpg
http://i36.tinypic.com/2rysw86.jpg

wow, some kind of secret code, it says, "Yamashita' Gold is located north of manilla, east of java",  ???

http://i33.tinypic.com/2a6mf83.jpg
pri>
http://i36.tinypic.com/b67l9x.jpg
sec>
http://i35.tinypic.com/2n6y9lk.jpg

spider murphy

 

[CJ]

right back at ya with some fresh meat for breakfast, 

look at these stunning shots, i am going to award myself the nobel xfmr prize!  ;D

this is the second time i have seen rusty lams due to moisture from the white tape.

intentional? remember rupert and his rusty neve lams? all they have to do is dry it out in an oven,wtf?

that is the terminal tape rivet thingy  sticking up edgewise, exposing the sec. lead routing, 

you have to really loosen up the tape with heat, otherwise snappy gator, dissection over, start again

 

[CJ]

count these

i am not a number, i am a free man!  (woman, probably) i want off the villaige! ok, outtermost sec. 17t>

26 layers just like this, these "pies", wound at the same time, then spliced  in series,  >

 

[alexc]

I see!    'Neve' grade lam rust.

"The sound is in the unevenly stacked oxide"

I knew there had to be something that makes these so sought after.

Great info CJ. Though it is bought with much sorrow for those concerned.

Thanks

 

[CJ]

well, if you want to see a tweak nobody knows about, and this trick really works, then observe closely:

there is a 7 turn layer of "foldback winding visible in this pic. as opposed to back and forth, capice?

Left to Right only, the back across quickly, to start another L to R layer,

what does this do, anybody?

plenty of air in thes sec layers, sometimes,

disk micrometer needed to measure the insl between layers, probably 0.0007"  or close,

Mike at Magnequest gets his made from virgin pulp trees in Germany, less toxic crap to eat wire,

same partial layer on the outer sec, coil B,

in order to have both windings start from the left side, somebody has to cross over,

so, did they start the counter before the extra 7 turns or after? either way, one winding is off a bit,

ok,  bottom of the barrel in the image dept, 3 rejects left, 1 leftover, 1 focus, 1 boring pri>


pri side,
i just realized i'm an idiot, all this time, i should have just flagged the  leads with yellow tape!  lot easier

not as much color as the peerless factory, but i did find some green tape in between pri taps,

notice no foldback technique, nor twin pies used for the low turns, low leakage  C primary windings,

and some orange paper, just in time for Halloween,

i will get the new data sheet filled out asap,

it will say 900 turns pri and 9000 turns sec, no wires were broken, so those are good numbers.

bye kids!

 

[MrZpliff]

Nice Job !

Now you have to put it all togheter again 

 

[CJ]

this is it for this transformer, i will try and update as many dissections as possible to this new style sheet,

enjoy!

 

[khstudio]

Hey CJ...
I just got a "BLACK" can HA-100X.
What's the difference's from the Black to Gray? Good or bad?

 

[DOX-EMF]

I got a couple of open pri Kenyons if you want to play in the tarpit !

Nice info !
DOX

 

[DaveP]

Don't you just love this guy! 
He speaks a language all his own! ;D

But its wonderful to our British Ears.
Your info down the years has been invaluable.
One nomination for Nobel service to the transformer attached
Well done CJ
best
DaveP

 

[emrr]

Hey CJ...
I just got a "BLACK" can HA-100X.
What's the difference's from the Black to Gray? Good or bad?

If you read all of CJ's UTC dissections, you see he mentions the black having a hair less inductance.  The really early sand cast black are preferred by the real vintage audio pervs.  The '70's TRW/UTC are rumored to kinda suck, like they cut every corner possible.  I have only ever seen one OPT/UTC, which was an early '90's A-10.  It seemed fine. 

 

[khstudio]

Cool, Thanks Doug!

... I'm wondering whether to sell it or keep it for my next LA2A build?
Does anyone know what they're worth... the BLACK HA-100X that is?
Obviously they can get ridiculous on ebay.

Thanks,
K

 

[emrr]

little to no price difference for any type

 

[jackies]

Umm, what about the "new school" Urei replacement?
http://www.studioelectronics.biz/sunshop/index.php?l=product_detail&p=1210
Anyone can comment on it's sound, is it close/different/crappy/clean/etc, compared to the original?
I have one of these for my future build.
And yeah, the way ebay prices are going it'll probably soon be cheaper to buy a vintage LA-2A to pull the transformers out.

 

[emrr]

Umm, what about the "new school" Urei replacement?
http://www.studioelectronics.biz/sunshop/index.php?l=product_detail&p=1210
Anyone can comment on it's sound, is it close/different/crappy/clean/etc, compared to the original?

Probably a question for SSLtech.

 

[bockaudio]

the new school version is not the same
CJ, what the physical dims of the bobbins & lams?

 

[Marik]

the new school version is not the same
CJ, what the physical dims of the bobbins & lams?

According to this picture:

in relation to the finger (more or less known size  8)) it looks like 375UI lams. I think that's the size you used in U195, correct?

Best, M

 

[mad.ax]

According to this picture, looks more like 31UI 

Axel

 

[Marik]

According to this picture, looks more like 31UI 

Axel

Good eye, Axel! That means CJs fingers are real tiny  ;D ;D ;D

I like the line Alloy--Super

Best, M