Відео

Way to go man. Looks like livin the dream. Keep building and innovating.

Hello Arash, very informative thank you. I would like to learn how to make the measurements shown at the end (equipment and procedure). Thanks

Nice Build ! Can you show the wiring of the socket boxes and the Socket Receiver too ? I customized my Roetest build alot too made all mostly out of PCB FR4 Material. I made a Whole Video Series on UA-cam about my Build of it.Cheers, Konstantin

Excellent video. Very well illustrated, even with direct drawbacks!! Showing assembly reality, and its possible problems!!! Congratulations 😊 !!!

Nice work

Absolutely GORGEOUS

Just be very carefull with those long plate leads. You cab set up a RF oscilation

I doubt this comment will be noticed but i use a lot of magnet wire for winding coils and i use a knipex stripping tweezers. They are brilliant and clean top and bottom at the same time cleaning is much faster and cleaner. Just thought i would mention it.

Стрелки все портят !😮

Pashmaam

Proves my point. I’ve accused you before of having mad skills. What can I say. Point proven.

I would definitely buy this oh my GOD its such a beautiful circuit

Всё плохо,... Можно сделать лучше, например ua-cam.com/video/gsZrCRxiUJs/v-deo.htmlsi=lP0G5toxYhtlvp6M

That Kapton tape is a very good material to secure wire with. It has become very expensive. Regular yellow tape is a good second go-to material (inexpensive) to wrap transformer windings with.

Nice work

I love the seventh about as much as I love tube gear! Perfect video.

No fancy winding machine needed, building one from Lego is possible and it also goes back and forth, video available.

Beautiful! How do you calculate the number of turns per winding for the required impedance, wattage etc?

Hi Can I ask from which procedure you use to calculate the number of layers and its arrangement for P and S

Why the paper between the two iron casing sections?

Классный станочик!😅😅😅

Где можно купить?

Hi, Nice VU meter. What’s the sensitivity of the meter this circuit supports (FSD) ? Will you give circuit details if I buy the Pcb from Ebay ? Thank you

No real information here. Ion area/volume or turns / volt info. Not able to duplicate.

Arash, I own a high end stereo, 1950s ampeq amplifiers, Fulton j speakers from the late 70s. The input transformer for one of the rtr tweeters is open, I have owned this system since the 1980s, I am reaching 70. Do you know where I can get this repaired or replaced. You do beautiful work by the way.

cool friend.. What I want to ask is, what size coker (wire housing) are you using in this video???

Mesmerising... Excellent upload.

Dear Arash, could you please let me know if this frequency response test shown is being done under working conditions, such as DC bias at the primary of your transformer and also secondary winding load conditions. Thank you !

Great video, but the music is not necessary

Using solid state in PSU?

nice!

sir. what is software finaly transfomer checked . thanks

Good stuff!

Dig it?😊

How do I order more?

Can I send you a few to repair for me? I have a power supply that hasn’t worked in a year because of a blown transformer an cannot find a replacement

This looks great. Any chance of a link to the schematic? I've just got hold of some NOS 807's, myself.

What is the size of bobin you using

Arash is the MAN :-) !! I found him from this video. I had a very expensive Laboratory Instrument that is End of Life, No parts or service available from the original manufacturer. A Transformer was burned out on one of the boards. I removed it and sent it to Arash. This was a very difficult transformer, completely vacuum coated in epoxy. It took him a long time to remove the epoxy and unwind all of the different voltage layers, counting as he removed each layer. In the end he did a great job. Unfortunately, it fixed the original problem but revealed another problem, so the instrument still is out of service. It was still worth the gamble. His price for the job was reasonable. A used instrument the same age, also End of Life is $6,000. A New instrument is $60,000. Thank You ***AAAA***

Do you mind sharing some info on this build? Thanks.

For the life of me, I'll never figure out why the audio industry has all but abandoned the use of almost any transformers in audio circuitry. For starters (pun intended), in the audio input section, a 600:600 ratio isolation transformer is like magic. Literally eliminates all ground and spurious noise. In the final output section, God forbid your output transistors short and supply bias DC voltage to your speaker cabs. You'll be replacing voice coils. Whereas, a transformer to deliver the signal to your speakers, transformers do not pass solid DC voltage. Problem solved.

I was just wondering if stagger stacking the I's and E's makes any difference in the transformer's response or efficiency?

Very good job!, I would like to know how test these transformers! Can you tell us please?

Very good needle response 👌👌. Is the driver circuit self designed?

Running klipsch rp5000mkII on this type of amp, runs really smooth

Looking forward to the potting and finishing video. Where did you source the winder? I also would be interested in a detailed listing of the parts (and their source) used in the making of this transformer. How did you determine the parameters (wire gauge, turn numbers, air gap thickness, etc) needed? Thanks.

How Much?

How much do you sell this for?

Dear, I wouldn't publish such a rubish transformer winding. You've got no idea and comptetence how properly this shall be done. Have a look here ua-cam.com/video/YRI4s2bCUQI/v-deo.html

At least now, I know I can’t do it.