CJ

Peerless 16402 OPT for Altec 436a
« on: October 04, 2009, 04:20:01 PM »
peerless made some good stuff, so wtf, over?  :D

i'm jus sayin...

« Last Edit: December 12, 2018, 06:35:27 AM by CJ »
If I can't fix it, I can fix it so nobody else can!
Frank's Tube Page: www.mif.pg.gda.pl/homepages/frank/vs.html
Guitar Amps: http://bmamps.com/Tech_sch.html


CJ

Re: Peerless 16402 Transformer Take-A Part
« Reply #1 on: October 04, 2009, 05:20:38 PM »
wagner makes a good heat gun, the black and decker finally fried from too much stress,
too many dissections, if you need a heat gun at OSH, it goes something like this:

tool barn>electrical dept>paint dept, as these are used for paint stripping, go figure, but 29 bucks, so hey, wtf, over?

check this:



pull that bad boy out>

interesting guide pin semi WE type
notice anything differentabout the lam grain?>
other side, comes right out with the screwdriver>


nice lam, eh?
laced 4 x 4, stretches the B-H curve out...


jig saw core
notice how the small holes let the polycrystaliene wax penetrat the lams
i thought it was for flux routing, but maybe not,


the letter what?>


coils, ...well doh!>

« Last Edit: October 04, 2009, 06:41:40 PM by CJ »
If I can't fix it, I can fix it so nobody else can!
Frank's Tube Page: www.mif.pg.gda.pl/homepages/frank/vs.html
Guitar Amps: http://bmamps.com/Tech_sch.html

CJ

Re: Peerless 16402 Transformer Take-A Part
« Reply #2 on: October 04, 2009, 06:39:21 PM »
this is a first, groovy colors for the winder to flash on>
noticed the cooked wire, somebody had an accident,  >:(




« Last Edit: October 04, 2009, 07:26:57 PM by CJ »
If I can't fix it, I can fix it so nobody else can!
Frank's Tube Page: www.mif.pg.gda.pl/homepages/frank/vs.html
Guitar Amps: http://bmamps.com/Tech_sch.html

Peerless 16402 Transformer Take-A Part
« Reply #3 on: October 04, 2009, 06:49:27 PM »
CJ,

Was it standard practice for a winder to splice a broken wire during a wind session to save it ?

or did they just just kick it to the curb.

Nice transformer binge lately.
« Last Edit: October 04, 2009, 07:14:07 PM by electrochronic »
curiousaudioparts at  gmail  dot  com
https://sites.google.com/site/diypartsstore/

CJ

Re: Peerless 16402 Transformer Take-A Part
« Reply #4 on: October 04, 2009, 06:57:01 PM »
"thou shall not splice"  is hung up in every winding shop,

unless it's 1/2 by 4 copper buss,  ;)

never seen one splice with all these dissections,

have i ever done it?




































i ain't a sayin... ;D
« Last Edit: October 04, 2009, 06:59:36 PM by CJ »
If I can't fix it, I can fix it so nobody else can!
Frank's Tube Page: www.mif.pg.gda.pl/homepages/frank/vs.html
Guitar Amps: http://bmamps.com/Tech_sch.html

rotation

Re: Peerless 16402 Transformer Take-A Part
« Reply #5 on: October 04, 2009, 07:07:31 PM »

Fantastic work, CJ. It's good to see you back. I just sent pics of this one to a friend, we have never seen lams of this shape.
What are those colors for?

Re: Peerless 16402 Transformer Take-A Part
« Reply #6 on: October 04, 2009, 07:16:04 PM »
tropical fish transformer, reminds me of the tropical fish non polar striped caps

were those bobbins wound on a rectanglar jig or is there a phenolic or plastic bobbin frame in the
middle or center ?
« Last Edit: October 04, 2009, 07:21:50 PM by electrochronic »
curiousaudioparts at  gmail  dot  com
https://sites.google.com/site/diypartsstore/

rotation

Re: Peerless 16402 Transformer Take-A Part
« Reply #7 on: October 04, 2009, 07:20:14 PM »

Insulation between layers?

CJ

Re: Peerless 16402 Transformer Take-A Part
« Reply #8 on: October 04, 2009, 07:20:23 PM »
lots of paper in this design,



finish layer note the spacing,


da chronic, here are the kraftpaper core tubes:



Peerless 16402

Pri: 10 Layers of #36, 240 turns per layer = 2400 turns per coil = 4800 total pri. turns.

Sec: 4 Layers of #29, 97 turns per layer minus 1 turn  = 387 turns per coil = 774 total sec. turns .

Turns Ratio:  4800/774 = 6.20:1


« Last Edit: October 13, 2015, 07:42:50 PM by CJ »
If I can't fix it, I can fix it so nobody else can!
Frank's Tube Page: www.mif.pg.gda.pl/homepages/frank/vs.html
Guitar Amps: http://bmamps.com/Tech_sch.html

CJ

Re: Peerless 16402 Transformer Take-A Part
« Reply #9 on: October 04, 2009, 08:17:14 PM »
so why am i all freaked out about this?>



because of this>


.
.
.














.
.
.

















.
.
.








 :D ;D  oh happy day,  praise the Lord of Transformer!




finally!  only took like 5 years, but hey..


i'm jus sayin...


we GroupDIY, we Bad


oh,  i almost forgot,  compare the wire gauges on the print, with the wire gauges posted for the dissection,

wtf, over?  ;)
« Last Edit: October 04, 2009, 09:09:18 PM by CJ »
If I can't fix it, I can fix it so nobody else can!
Frank's Tube Page: www.mif.pg.gda.pl/homepages/frank/vs.html
Guitar Amps: http://bmamps.com/Tech_sch.html


AnalogPackrat

Re: Peerless 16402 Transformer Take-A Part
« Reply #10 on: October 05, 2009, 12:36:21 PM »
Neat one.  I don't suppose anyone makes those lams anymore, eh?  Glad to see you back on the disassembly job.  I guess the rivers must be dry by now  ;D
If it is to be, it is up to me.

CJ

Re: Peerless 16402 Transformer Take-A Part
« Reply #11 on: October 05, 2009, 08:38:00 PM »
nobody stamps that lam anymore,

mike at magnequest has about 50 lbs, but he won't sell it to me, i tried like 18 times,

if you want to build an output like the original, you have to take apart something else,

only problem was, until now, is which transformer out of all of them share the same lam,

i do not know how many 16402 xfmr's there are out there, possibly other models exist with that lam,

the utc L lam is the same size, from the ls series, but no rounded corners or wax holes, and material?

next i am going to wind a S 217 D using the core tubes from the dissection, should be a kick,

when i saw it wasn't a c core but a L lam, i didn't know weather to sh*t or go blind!  :D
 
« Last Edit: October 05, 2009, 08:39:51 PM by CJ »
If I can't fix it, I can fix it so nobody else can!
Frank's Tube Page: www.mif.pg.gda.pl/homepages/frank/vs.html
Guitar Amps: http://bmamps.com/Tech_sch.html

vari-mu

Re: Peerless 16402 Transformer Take-A Part
« Reply #12 on: October 08, 2009, 04:31:37 AM »
       
CJ,
there is the legendary L !2 of  S-217D ?
What size, thickness? Steel 96% FE 4% SI, or the other?
Thanks .

CJ

Re: Peerless 16402 Transformer Take-A Part
« Reply #13 on: October 08, 2009, 04:38:50 AM »
yes, that is the famous lam with the holes in it, same style as e 204 d, stack 4 x 4 as it is an output,
If I can't fix it, I can fix it so nobody else can!
Frank's Tube Page: www.mif.pg.gda.pl/homepages/frank/vs.html
Guitar Amps: http://bmamps.com/Tech_sch.html

helterbelter

Re: Peerless 16402 Transformer Take-A Part
« Reply #14 on: October 08, 2009, 05:17:19 AM »
Man.... You should have your own Meta "CJ's Transformer Autopsy Room".



(With an additional "CJ's Slang Dictionary". ) ;)

drpat

Re: Peerless 16402 Transformer Take-A Part
« Reply #15 on: October 08, 2009, 03:04:33 PM »
Holy sh*te! L-12 lams!  :o

Man, it's good to see you back to your old self CJ!
I use the LA2a on very hot signals like lead vocal.

CJ

Re: Peerless 16402 Transformer Take-A Part
« Reply #16 on: October 08, 2009, 09:40:19 PM »
hey Pat word up, G's down, chillin it , hey, you still have any pultecs ?

see if you can measure the inductance and dcr, you do not need to unsolder anything, just disconnect the output cable from the sec, and a cold vacuum tube will open up the pri.

i will diy a s 217 d on these 16402 = s 217 d core tubes, measure the inductamce and dcr against yours, it would be a step towards getting the real xfmr without evilbay ripping us off.
If I can't fix it, I can fix it so nobody else can!
Frank's Tube Page: www.mif.pg.gda.pl/homepages/frank/vs.html
Guitar Amps: http://bmamps.com/Tech_sch.html

Re: Peerless 16402 Transformer Take-A Part
« Reply #17 on: October 13, 2015, 09:22:19 AM »

Peerless 16402

Pri: 10 Layers of #36, 240 turns per layer = 24000 turns per coil = 4800 total pri. turns.

Sec: 4 Layers of #29, 97 turns per layer minus 1 turn  = 387 turns per coil = 774 total sec. turns .

Turns Ratio:  4800/774 = 6.20:1
Hi CJ,

So was this 16402 wound 1/2 pri, 1/2 sec on each bobbin, or were the windings sectioned?
thanks!

CJ

Re: Peerless 16402 Transformer Take-A Part
« Reply #18 on: October 13, 2015, 07:49:01 PM »
that guy goes 2400T #36 pri then 387 #29 sec on each coil, connect F-F to keep both coils in phase,

i corrected the erroneous 24000 number in the post

cj
If I can't fix it, I can fix it so nobody else can!
Frank's Tube Page: www.mif.pg.gda.pl/homepages/frank/vs.html
Guitar Amps: http://bmamps.com/Tech_sch.html

Re: Peerless 16402 Transformer Take-A Part
« Reply #19 on: October 13, 2015, 09:11:36 PM »
Thanks!!


 

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