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EL 84 headphone amp. with a pair of Tango H-5S SE output transformer

post #1 of 7
Thread Starter 

I am making a EL84 tube headphone amp.  A single end triode design similar to Mapletree super II.  I have a pair of Tango H-5S SE transfomers.  On top of cases, there are wording of "balanced windings"

 

What is the meaning of balanced windings?

 

thanks for your help in advance.

 

Sam

post #2 of 7
Thread Starter 
I used a pair of Raphaelite before I found the pairs of Tango.

They worked perfectly but the sound is a bit on the warm side.
Edited by samsie - 4/16/13 at 11:07pm
post #3 of 7
Thread Starter 
Here is a pic of the headphone amp I built .


Edited by samsie - 4/16/13 at 11:25pm
post #4 of 7

Looks nice. How about a schematic and a couple of internal shots?

post #5 of 7
Thread Starter 

 

This is my 1st tube amp built.  Mostly, I used parts from my tool box.  The pair of solen were later replaced by a pair of Auricap :-)

post #6 of 7
Thread Starter 

schematic was not much to talk about.  It is based on the Mapletree Super.

 

 

 I modified it to AC heater cause it is cheaper and easiler.  I  used a pair Raphaelite output transformers  instead of Hammond as it has higher impedance.  so I can use a cap of lower value.  They are  cheaper and more choices.

 

I even try a pair of Mundorf Silver oil 4.7uf cap but I do not like the sound.  I settled with a pair of Auricap. 

 

Last night, I tried to change the cheap Raphaelite Output transformer to a pair of vintage Tango H-5S.  I end up with smoke from the power supply. pretty scary!!!.

 

 

 

 

Anyone can tell me if I am using the right type of Tango  tranformers? 

 

Regards

 

Sam


Edited by samsie - 4/17/13 at 11:46am
post #7 of 7

Wow looks nice!!!  Schematic?

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