Power and Output transformers for sale

[nafanja]

The filament dream of tube maker for sale!!!

It's the 300VA transfor,er

Primary 220V
Secondary 6.3-6.3-6.3-6.3 Volts...

The price for one transformer is 35 USD
For 50 transformers 30 USD
For 100 transformers 25 USD

Exelent for tube gear (filament). For tube amp or guitar combos...

 

[nafanja]

VIntage chokes

I have a vintage chokes

Max curent is 80 ma (Io = 80 ma)
Inductivity is 5 Henry...

The price 25 USD.

 

[nafanja]

My 75 VA >10 kg transformer

It's my transformer for 75 load.

The core from 1500 VA factory power block...

Ultra cuper is suitible for high-end poert block of amplifier or power regenerator...

With 300VA I am use 4 this kind transformers...

 

[Colescuttle]

The dimensions are perfect.

And you can turn this into a 300VA, 120V, 60Hz primary, 20-0-20V secondary, high end variant for $150 USD including shipping? If so, you've got a sale. The very fact that the core is more rounded than most of trafos on the market means that it takes less force to wind them, with all the good things that implies. I think you may strike fear into the heart of the big makers.

 

[Colescuttle]

Almost forgot...

And with the core material and winding method (I think you said bifilary) best for a power transformer?

 

[nafanja]

Re: The dimensions are perfect.

And you can turn this into a 300VA, 120V, 60Hz primary, 20-0-20V secondary, high end variant for $150 USD including shipping? If so, you've got a sale. The very fact that the core is more rounded than most of trafos on the market means that it takes less force to wind them, with all the good things that implies. I think you may strike fear into the heart of the big makers.

Hi George,

You recieved yesterday money request.
Sorry, it was not for you. Your full price is 120+28=148$.

 

[nafanja]

For Colescuttle

I think for yje power trafo idealy amorpheus core that thios have abig induction, ultra-low loss and big energy capacitance...
Amprpheus core have at primary with induction near 0.7 Tesla (like output transformer) ibductivity near 500-1000 Henry.

The secondary have a big impedance, it's kill the feedback (back signal from eqipment...)
But know the methode of making is not cheep.

But this core is lightly than FeSe standard cores...

The bifilar cuper by thiner ware have ability to economy the place for ware. The secondary ware (double or more) help to get more matherial...

For audio use - may be I use double 3 mm ware at the secondary and three 0.7mm diameter ware and 1500 wounds (standart factory have 120*3=36). Here is 1500/120=12.5 woundes for 1V.
It's with deluvery this will be cost near 200 USD...
but You will economy money for delivery.
But for this transformer I will need to say other dimentions...
The height near 60 mm, the diameter with a cooper will be near 150 mm.


Look for your ability...

 

[nafanja]

Painted

choke

 

[Colescuttle]

What would you recommend?

I will be using these transformers to power overbiased (~2.4 amperes), Class A, single-ended, mosfet monobloc amplifiers with a total output of about 30 watts per channel (Nelson Pass Aleph 30 clones). I will be using about 100,000 uF of capacitance per rail with CRC filtration to provide about 25 volts per rail. The amps will be used to drive 8 ohm full range hybrid (horn/transmission line) speakers. (In other words, I expect the system powered by these amps to be low noise, high resolution, musical and perhaps on the warm side.) These will be the last amplifiers that I build, and I'd like them to sound as good as I can make them.

Given these constraints, what would be the "ideal" power transformers.

George

 

[Colescuttle]

And, in addition...

$200 including shipping is about what I'd expect to spend for less "high end" transformers that I can get from other makers, so it's not unreasonable.

 

[nafanja]

The macket of bufer..

The same...

 

[Colescuttle]

Re: For Colescuttle

I think for yje power trafo idealy amorpheus core that thios have abig induction, ultra-low loss and big energy capacitance...
Amprpheus core have at primary with induction near 0.7 Tesla (like output transformer) ibductivity near 500-1000 Henry.

The secondary have a big impedance, it's kill the feedback (back signal from eqipment...)
But know the methode of making is not cheep.

But this core is lightly than FeSe standard cores...

The bifilar cuper by thiner ware have ability to economy the place for ware. The secondary ware (double or more) help to get more matherial...

For audio use - may be I use double 3 mm ware at the secondary and three 0.7mm diameter ware and 1500 wounds (standart factory have 120*3=36). Here is 1500/120=12.5 woundes for 1V.
It's with deluvery this will be cost near 200 USD...
but You will economy money for delivery.
But for this transformer I will need to say other dimentions...
The height near 60 mm, the diameter with a cooper will be near 150 mm.


Look for your ability...

Whoops! A little too quick on the submit button. Could you turn the above into a working plan for a pair and either send it to me privately or post it here (in case someone else might be interested). Then, if the price is $200 USD or less, including shipping, I'll send a PayPal payment to "as_itd'at'lycos.com."

Thanks.

George (Colescuttle)

 

[lindamar]

Hi Nafanja,

I have been thinking on what to do about the output trafos that you suggested, and I like very much the idea...but let's try first with the power trafo first and then we will see from there, is that ok for you ?. With the power trafo at hand, I will have an overview of the quality of your products.

if you feel that you like what I propose, then send me please the quote plus shipping to my paypal account (I am sending it now to Nafanja-europe gmail account).

Just to make sure, it will be a toroidal with 230VAC primary, with 3 secondaries: 1 secondary 110VAC @1A , 2 secondaries 6,3VAC @2A.
(I will be powering one 6H6P, but I would like the trafo to be able to power 2, shall i need 4 secondaries instead of 3 ?, something like 2 110VAC @1A , 2 6,3VAC @2A)

Best regards,
Pepe

 

[lindamar]

Hello Nafanja/Anton,

Thank you very much for sending me the paypal request to my email address. I have already paid, so hopefully the confirmation is on its way to you.

I would appreciate if you could drop me an email once the trafo is finished is being shipped. Do not hesitate to contact me should you need any help.

Best regards,
Pepe

 

[nafanja]

2 Pepe ,


you've got mail

 

[nafanja]

For Pepe...

At the nearest time you will se the photo of your transformer...

The ware is the cuper in the silk
Primary and anode secondary.

The transformer is wounding.

 

[lindamar]

Nafanja,

Thank you !!, I look forward to seeing the picture (really liked the idea) !!

Pepe

 

[moSIN12]

Transformers and chokes needed

Нафаня,

Пытаюсь собрать свой первый однотактник и мне нужны трансы:

СИЛОВИК:

Первичка:
120V

Вторичка:
1) 2 x 150V с общей землей 300mA минимум
2) 1 х 6.3V 3A
3) 2 x 6.3V 1A

ДРОССЕЛИ (2 шт.)

5 Генри с малым омическим сопротивлением

ВЫХОДНИКИ (2 шт.):

5кОм при анодной нагрузке в 30mA с 4 и 8 Ом на выходе

Во что они мне встанут с доставкой в Канаду?

Спасибо

Евгений

 

[nafanja]

For Pepe

The process is go...

 

[nafanja]

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