HOW TO REWIND A TRANSFORMER (2018) 

Your patience and tenacity is an inspiration to me!

Next time you do this, give the entire transformer a bath for 10-20 minutes in boiling water and it will almost fall apart on it's own. The amount of trouble you had to delaminate it is avoidable.

i actually clicked this video thinking ill see a woman winding the transformer

Love this channel, so helpful for newbie. thanks for sharing...

Moj tebra genije. :) Love is all around. :)

I rarely manage to get the last lamination back in when reassembling, so don't worry if you damage the first one getting it out. Also, the primary turns per core size are then slightly increased so no damage done. Just the power rating slightly decreased.

i have a cheap 12-0-12 transformer the current is unknown but im tested it which 10 ohm load and it give 600ma. it is possible get higher current after rewind it?

20 minutes of watching you rip one apart - and 90 seconds of how to clean and paint a bit of pressed steel! now how about a proper tutorial of winding the coils??? I was genuinely looking forward to this bit

great job!

Would applying heat (with fire retardant gloves) to the laminations help? It looks like once you have first few off the rest gets easier. Is that the case?

Very nice watching would like to see winding video also

Appreciated

I save the "I" laminations from discarded transformers to wedge between the laminations. Once I can get enough of a gap between the laminations with a knife I can use a hammer to drive the junk "I" laminations all the way through, breaking the varnish that's gluing them together.

New subscriber here.

Hi Delatsch, great video! Really helped me to unbuild an old transformer that i want to repair. One question regarding the core laminations. The Transformer i have has a lot of rust on each of the laminations. Do you have any preffered method of cleaning those laminations? I've read that they are coated so that they are insulated fromanother to decrease the effect of eddy current. Other people wrote that the rust could seperate the laminations which will cause hum/noise. I have thought about getting the rust of with vinegar but i'm not sure if i would destroy the transformer with this method, because of the lost of the insulation coat on each lamination. What is your method? Just leaving the rust on the laminations alone?

Do you ever hide a fuse in the last wind of the low voltage side? I thought my 120/24 was burned up but I found a fuse a half a turn away from the stub outs that saved the transformer. Now I'd just as soon put a fuse on the outside and solder the leads together on the inside and seal it all back up. This one has the strait laminates welded where they meet the E laminates. So would have been a bit more laborious to get them apart.

Hi. When do you know if a power supply needs to be rewinded or some other components like the capacitor or resistor or transistor, need to be replaced instead? I have a Famicom power supply, it's a video game console. When I measure it at the end of the power supply jack (where it plugs to the unit), the measurement is less than 0.5v only. The specifications of the power supply is: MODEL HVC-002 MITSUOKA D.S AC100V 50/60Hz 18VA DC10V 850mA Our mains/outlet is 220v (s.e. asia). It'd be nice to restore it to its original. I've already opened it (it's got the rarest screw I've seen, tough to unscrew) it. When I test the voltage (using a step down transformer), what comes out of the jack (the end you plug into the Famicom) is less than 0.5v Thank you. God bless, Proverbs 31

Mr D, got a Chromebook = no Excel. Any suggestions if I wished to get your spreadsheets? Google 'Sheets?' Thank you

If you smack it with a hammer on all four sides not real hard but hard enough he'll break a lot of them loose and you can get them out easier

Hi there, very interesting and informative video - thank you - that I've only just come across and about which I hope you are still open to a question on. If you have an EHT transformer with several winding layers to achieve a +2kV output voltage and you know the number of turns required is, say, 2200 turns, is it optional to have the turns equal or unequal on each layer so long as the total number of turns is achieved over the total number of layers and no single layer is way outside what would be reasonably chosen. So let's say the number of turns for each layer went 98, 96, 110, 104, 99, 121, 107 and so on until 2200 turns was reached on the final layer. I have this in an EHT transformer in a faulty oscilloscope with no display on its electrostatic CRT. The EHT winding went open circuit and I am rewinding it with fresh 38 AWG wire but would like to make each winding layer the total number of turns divided by the number of layers, so it's nice and even. I can do this, right? It won't matter?

Hi I have a transformer that need to rewinding do you do that ? How can I get in contact with you? Thank you 👍

thanks for sharing, would boiling the transformer in water to disolve the wax help??? or would make it worse??

Whats the frequency did you take for turns calculation?

The only thing driving me crazy is your lack of real tools and your editing talent.

does anyone does this in the US 🇺🇸? I need one done and I doubt I can do it on my own.

hi got you help me please

Who's the girl on the title picture?

Hi. When you need to rewind a transformer? Say, the power adapter of a Famicom (a japanese Nintendo)? Thank you. God bless, Proverbs 31

60hz to 50hz - means higher flux density and loss

Down load

Seriously? You spent way more time on polishing the end bells than you did on actually WINDING the transformer! This wasn't a tutorial on how to rewind a transformer, it was a tutorial on disassembling one.

Clickbait-ass cover frame 🤣

I call click bait.

Skip a few parts man... Too slow. Thanks for uploading tho.

And the award for most boring video on RU-vid goes to...

bore fest