[ROOMBAZOOM]

@ROOMBAZOOM

you uploaded 7 image files, each one size is 3MB... I think that limited bandwidth users is out of bandwidth now =D ...

also, you restore old headphones with "sony mdr62", walkman drivers,,,
It's more DIY headphones less them the original one.
it's new "sony mdr62" but with new cans.

I not like to take some picture now,
but I order 3pcs of this headphones, that once gave me on the airplane:

Sennheiser HD 16 . It uses 28mm 300ohm driver
also Walkman style that I like =D
but from high quality materials.


this is my old mod that I done on one pair

You are totally right. It is DIY. But as it was both linked to mdr62 and old europsonic vintage looking heaphones I did not know where to put this mod. But thank you for liking anyway.

 

[legopart]

 

[legopart]

Which pads fits better,
The stock pads that I refoamed
or the new one that beyerdynamic sold today ?

 

[MrTechAgent]

Are you going to make any more youtube videos on your channel?

Also, on one of your social media, you say you have made some new headphones with your Kaldas company . will you be sharing info on head-fi or have a thread like Dan with Mr. Speakers did or Zach with ZMF?

Those Et1000 do look very cool, wish i could hear one.

I'll be back soon. More on Kaldas Research will follow.
Thanks for the support, man. It's been a while.

 

[legopart]

I'll be back soon. More on Kaldas Research will follow.
Thanks for the support, man. It's been a while.

I like you too!

Like you'r video's, the advice about headphones, reviews and the knowlage about headphones factory

 

[legopart]

Look, I tried to explain first headphones (WW1) mechanism and screw up

If we take for example "Nethaniel Baldwin" headphones

vintage speaker mechanism

Most of the pictures took from here https://www.prc68.com/I/SoundPoweredTelephone.html#Background

 

[WallofHooligans]

Hahaha great post, very meticulously created drawings right there
Still cool to see the primitive beginning of headphones. It honestly hasn't changed that much in the last 50 years.

 

[legopart]

Nah.... not much changes from the dynamic one...
only the U-Shaped magnet

Coil coreless bobin

Actually with core that magnetize

OH yeh!!!
I found a good schematics for what I said (without the words: "Balanced Armature" or "Pivot")

*from here https://www.headphonesty.com/2017/04/5-types-headphone-drivers-know/

The dynamic one Is something like

Electrostatic

Planner

from here https://www.innerfidelity.com/content/how-planar-magnetic-headphone-drivers-work

old scholl Iso/Ortho dynamic

Balanced Armature IEM drive ? (first time saw it)

Piezo

* the middle/little piezo cristal on the first pic works as microphone and earse the noises from the original signal that the metal plate makes (this what I read)

I Forgot something?

 

[JadeEast]

You've missed a few oddball driver technologies that a few people have crammed into headphone with differing levels of success : one invented by Dr. Heil, and one from a company called RAAL, and one that uses plasma(Crazy right?).

 

[legopart]

Stax Srm-1 amp
headphones: Stax Sr-30, Stax Lambda pro, Stax Sigma normal


Stax Sigma, makes some scratching noise when it amps to 3/4 of the power, tried to clean as I could but without sucsess an live it as it.
After cleaning the material on the headband damaged a bit after washing machine (next time I will wash by hand).
From past experiments, not recommended to wash the leather pads cause the glue inside them make it stinky , I only clean them with alcohol a bit.


I decide to stop ordering more headphones at this point,
If I will perches something in the future it will be some thing from the high class.

In addition I received today fixed good pair of Beyerdynamic T1, That I think that it the best!

I waiting to this pair, just for fun/ collect or just try to active and hear some nostalgic class headphones
headphones: Nathaniel Baldwin, Trimm Dependable
I really interested how this old class heard

*It have to get some big repair.
If only one side will work, I will be very happy.

 

[legopart]

Balance-Armature 1915s headphones after cleaning and without the cable

 

[GREQ]

.

 

[GREQ]

.

 

[Zumper]

@legopart I am stunned.

 

[jksoon]

After reading several pages on the very long Orthodynamic Roundup post. I decided to purchase a couple vintage orthos. Here's my additions from the past month.

Yamaha YH-3, YH-1 and Fostex T10.